{"id":11556,"date":"2026-07-16T03:35:59","date_gmt":"2026-07-16T03:35:59","guid":{"rendered":"https:\/\/michemicals.com\/?p=11556"},"modified":"2026-07-16T07:09:57","modified_gmt":"2026-07-16T07:09:57","slug":"le-hec-assure-la-stabilite-de-la-viscosite-a-un-ph-eleve","status":"publish","type":"post","link":"https:\/\/michemicals.com\/fr\/le-hec-assure-la-stabilite-de-la-viscosite-a-un-ph-eleve\/","title":{"rendered":"Pourquoi le HEC conserve sa viscosit\u00e9 dans des environnements cimentaires \u00e0 pH \u00e9lev\u00e9 (pH 12\u201313)"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"11556\" class=\"elementor elementor-11556\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-172df477 elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"172df477\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3a6b371a\" data-id=\"3a6b371a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6bac5b28 elementor-align-left elementor-widget elementor-widget-post-info\" data-id=\"6bac5b28\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-2770981 elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t<a href=\"https:\/\/michemicals.com\/fr\/2026\/07\/16\/\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-calendar-week\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M0 464c0 26.5 21.5 48 48 48h352c26.5 0 48-21.5 48-48V192H0v272zm64-192c0-8.8 7.2-16 16-16h288c8.8 0 16 7.2 16 16v64c0 8.8-7.2 16-16 16H80c-8.8 0-16-7.2-16-16v-64zM400 64h-48V16c0-8.8-7.2-16-16-16h-32c-8.8 0-16 7.2-16 16v48H160V16c0-8.8-7.2-16-16-16h-32c-8.8 0-16 7.2-16 16v48H48C21.5 64 0 85.5 0 112v48h448v-48c0-26.5-21.5-48-48-48z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\t<time>juillet 16, 2026<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-6cd1462 elementor-inline-item\" itemprop=\"author\">\n\t\t\t\t\t\t<a href=\"https:\/\/michemicals.com\/fr\/author\/protizerr-com\/\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-user-circle\" viewBox=\"0 0 496 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M248 104c-53 0-96 43-96 96s43 96 96 96 96-43 96-96-43-96-96-96zm0 144c-26.5 0-48-21.5-48-48s21.5-48 48-48 48 21.5 48 48-21.5 48-48 48zm0-240C111 8 0 119 0 256s111 248 248 248 248-111 248-248S385 8 248 8zm0 448c-49.7 0-95.1-18.3-130.1-48.4 14.9-23 40.4-38.6 69.6-39.5 20.8 6.4 40.6 9.6 60.5 9.6s39.7-3.1 60.5-9.6c29.2 1 54.7 16.5 69.6 39.5-35 30.1-80.4 48.4-130.1 48.4zm162.7-84.1c-24.4-31.4-62.1-51.9-105.1-51.9-10.2 0-26 9.6-57.6 9.6-31.5 0-47.4-9.6-57.6-9.6-42.9 0-80.6 20.5-105.1 51.9C61.9 339.2 48 299.2 48 256c0-110.3 89.7-200 200-200s200 89.7 200 200c0 43.2-13.9 83.2-37.3 115.9z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-author\">\n\t\t\t\t\t\t\t\t\t\tmichem\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-52b2def9 e-flex e-con-boxed e-con e-parent\" data-id=\"52b2def9\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6003337d e-con-full e-flex e-con e-child\" data-id=\"6003337d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5caaf399 e-con-full e-flex e-con e-child\" data-id=\"5caaf399\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-30fa0c43 elementor-widget elementor-widget-heading\" data-id=\"30fa0c43\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Introduction<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32cb0a6d elementor-widget elementor-widget-text-editor\" data-id=\"32cb0a6d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>HEC (Hydroxyethyl Cellulose) maintains viscosity stability in high-pH cement environments (pH 12\u201313) because its non-ionic molecular structure lacks carboxyl groups that would ionize or deprotonate under alkaline conditions \u2014 unlike CMC (anionic, DS-dependent) and HPMC (methoxyl groups susceptible to alkaline hydrolysis).<\/p><p>HEC&#8217;s purely hydroxyethyl substitution creates a chemically inert thickener that resists the nucleophilic attack of hydroxide ions (OH\u207b) at pH 12\u201313, the range at which fresh cement paste operates. CMC, carrying carboxymethyl anionic groups (-CH\u2082COO\u207bNa\u207a), experiences chain collapse and progressive viscosity loss above pH 9, as excess OH\u207b ions compress the electrostatic double layer responsible for chain extension.<\/p><p>HPMC, despite being non-ionic, contains methoxyl (-OCH\u2083) substituents that undergo alkaline ether cleavage above pH 11, stripping substituents from the cellulose backbone and causing irreversible viscosity degradation. HEC&#8217;s hydroxyethyl side chains (-CH\u2082CH\u2082OH) carry no ionic charge and resist alkaline hydrolysis because the \u03b2-hydroxyethyl ether bond is sterically and electronically stable against OH\u207b attack. This chemical inertness, combined with enzyme-resistant manufacturing, makes Michem HEC the only cellulose ether thickener that delivers &gt;90% viscosity retention after 30 days at pH 12 \u2014 the exact condition encountered in tile adhesives, self-leveling compounds, grouts, repair mortars, and all cement-based construction products.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-901c91a elementor-widget elementor-widget-post-info\" data-id=\"901c91a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-28d218c elementor-inline-item\" itemprop=\"about\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-tags\" viewBox=\"0 0 640 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M497.941 225.941L286.059 14.059A48 48 0 0 0 252.118 0H48C21.49 0 0 21.49 0 48v204.118a48 48 0 0 0 14.059 33.941l211.882 211.882c18.744 18.745 49.136 18.746 67.882 0l204.118-204.118c18.745-18.745 18.745-49.137 0-67.882zM112 160c-26.51 0-48-21.49-48-48s21.49-48 48-48 48 21.49 48 48-21.49 48-48 48zm513.941 133.823L421.823 497.941c-18.745 18.745-49.137 18.745-67.882 0l-.36-.36L527.64 323.522c16.999-16.999 26.36-39.6 26.36-63.64s-9.362-46.641-26.36-63.64L331.397 0h48.721a48 48 0 0 1 33.941 14.059l211.882 211.882c18.745 18.745 18.745 49.137 0 67.882z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-terms\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-post-info__terms-list\">\n\t\t\t\t<a href=\"https:\/\/michemicals.com\/fr\/etiquette\/hec-in-high-ph-cement-environments\/\" class=\"elementor-post-info__terms-list-item\">hec in High-pH Cement Environments<\/a>, <a href=\"https:\/\/michemicals.com\/fr\/etiquette\/hec-maintains-viscosity-stability\/\" class=\"elementor-post-info__terms-list-item\">HEC Maintains Viscosity Stability<\/a>\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3cb251ac e-flex e-con-boxed e-con e-parent\" data-id=\"3cb251ac\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-d1b43cd e-con-full e-flex e-con e-child\" data-id=\"d1b43cd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5c1b0e20 e-con-full e-flex e-con e-child\" data-id=\"5c1b0e20\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-32a388cf e-con-full e-flex e-con e-child\" data-id=\"32a388cf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1181c2e4 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"1181c2e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;,&quot;h4&quot;,&quot;h5&quot;,&quot;h6&quot;],&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__1181c2e4\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__1181c2e4\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__1181c2e4\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc95ce6 elementor-widget elementor-widget-text-editor\" data-id=\"fc95ce6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-11558 size-full\" src=\"https:\/\/michemicals.com\/wp-content\/uploads\/2026\/07\/in-High-pH-Cement-Environments.webp\" alt=\"HEC in High-pH Cement Environments\" width=\"800\" height=\"618\" title=\"\" srcset=\"https:\/\/michemicals.com\/wp-content\/uploads\/2026\/07\/in-High-pH-Cement-Environments.webp 800w, https:\/\/michemicals.com\/wp-content\/uploads\/2026\/07\/in-High-pH-Cement-Environments-300x232.webp 300w, https:\/\/michemicals.com\/wp-content\/uploads\/2026\/07\/in-High-pH-Cement-Environments-768x593.webp 768w, https:\/\/michemicals.com\/wp-content\/uploads\/2026\/07\/in-High-pH-Cement-Environments-16x12.webp 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p><h2>Key Takeaways<\/h2><ul><li><strong>HEC is fully non-ionic<\/strong> \u2014 zero carboxyl or methoxyl groups means zero pH-dependent ionization, zero alkaline hydrolysis, and viscosity governed only by chain entanglement and hydrogen bonding<\/li><\/ul><ul><li><strong>&gt;90% viscosity retention at pH 12 after 30 days<\/strong> \u2014 laboratory data confirm HEC&#8217;s long-term stability in cement-alkaline conditions where CMC drops below 50% and HPMC collapses below 30%<\/li><\/ul><ul><li><strong>CMC fails above pH 9<\/strong> \u2014 its anionic carboxymethyl groups depend on electrostatic repulsion for chain extension; excess OH\u207b ions at high pH compress the double layer, collapsing chains and destroying viscosity<\/li><\/ul><ul><li><strong>HPMC fails above pH 11<\/strong> \u2014 its methoxyl (-OCH\u2083) substituents undergo nucleophilic attack by OH\u207b (alkaline hydrolysis), cleaving ether bonds and irreversibly degrading the polymer backbone<\/li><\/ul><ul><li><strong><a href=\"https:\/\/michemicals.com\/cellulose-ether\/hydroxyethyl-cellulose\/\">Michem HEC<\/a> covers 1,500\u20138,500 mPa\u00b7s in four grades<\/strong> \u2014 HE30KB, HE60KB, HE100KB, and HE150KB, each with enzyme resistance and \u22645% moisture and ash, providing consistent performance for every cement-based formulation<\/li><\/ul><hr \/><h2>Why This Answer Matters<\/h2><p>Fresh cement paste hydrates at pH 12.5\u201313, and this alkalinity persists for weeks \u2014 or longer in thick sections. Any cellulose ether thickener added to a dry-mix mortar, tile adhesive, grout, or self-leveling compound must survive this environment from mixing through curing. A thickener that loses viscosity at high pH causes water separation (bleeding), pigment settling, sag on vertical surfaces, and inconsistent application properties \u2014 defects that translate directly into job-site complaints and product returns.<\/p><p>The problem is that most formulators treat cellulose ethers as interchangeable. They are not. CMC&#8217;s anionic mechanism collapses above pH 9. HPMC&#8217;s methoxyl groups hydrolyze above pH 11. Only HEC&#8217;s non-ionic, hydroxyethyl-only architecture survives pH 12\u201313 without degradation. Choosing the wrong cellulose ether for a cement-based system is not a minor formulation nuance \u2014 it determines whether the product performs in the field or fails on the wall. This answer clarifies the molecular mechanism behind the choice, so formulators can specify with confidence rather than guess.<\/p><hr \/><h2>Technical Deep Dive<\/h2><h3>Non-Ionic Mechanism: Why HEC Survives pH 12\u201313<\/h3><p>HEC is synthesized by reacting alkali-cellulose with ethylene oxide, grafting hydroxyethyl groups (-CH\u2082CH\u2082OH) onto the anhydroglucose backbone. These substituents are neutral ether-alcohols \u2014 they carry zero ionic charge under any pH condition. HEC&#8217;s thickening mechanism is purely physical: dissolved chains entangle, hydrogen-bond with water molecules, and occupy large hydrodynamic volumes. No part of this mechanism depends on electrostatic repulsion, ionic strength, or acid-base equilibria. When external pH changes, hydroxide or hydronium concentrations shift dramatically, but because HEC&#8217;s substituents are charge-neutral and chemically inert, its hydration state, chain conformation, and intermolecular interactions remain unchanged.<\/p><h3>CMC Anionic Failure Mechanism<\/h3><p>CMC (Carboxymethyl Cellulose) is synthesized by reacting alkali-cellulose with monochloroacetic acid, producing carboxymethyl substituents (-CH\u2082COO\u207bNa\u207a). In solution, these groups dissociate, leaving negatively charged carboxylate ions along the polymer backbone. Electrostatic repulsion between these charges extends CMC chains, and this extended conformation is the primary source of CMC&#8217;s thickening power.<\/p><p>In high-pH cement environments (pH 12\u201313):<\/p><ul><li>Excess OH\u207b ions screen the electrostatic repulsion between carboxylate groups, compressing the electrical double layer<\/li><\/ul><ul><li>Chain extension collapses, hydrodynamic volume shrinks, and viscosity drops sharply<\/li><\/ul><ul><li>Above pH 9, viscosity loss is measurable; above pH 12, CMC loses &gt;50% of its original viscosity within days<\/li><\/ul><ul><li>The DS (Degree of Substitution) of 0.65\u20130.9 cannot compensate \u2014 the mechanism itself is pH-dependent<\/li><\/ul><h3>HPMC Alkaline Hydrolysis Pathway<\/h3><p>HPMC (Hydroxypropyl Methylcellulose) carries both methoxyl (-OCH\u2083) and hydroxypropyl (-CH\u2082CHOHCH\u2083) substituents. While HPMC is non-ionic, its methoxyl groups are susceptible to alkaline hydrolysis through nucleophilic attack:<\/p><ol><li>OH\u207b attacks the carbon atom of the methoxyl ether bond (Cellulose-O-CH\u2083)<\/li><\/ol><ol><li>The C-O bond cleaves, releasing methanol (CH\u2083OH) and leaving a deprotonated hydroxyl on the cellulose backbone<\/li><\/ol><ol><li>As methoxyl substitution is progressively stripped, HPMC loses its water solubility and thickening capacity<\/li><\/ol><ol><li>This degradation is irreversible \u2014 once hydrolyzed, the polymer cannot be restored<\/li><\/ol><p>Above pH 11, this hydrolysis proceeds at a measurable rate. At pH 12\u201313 (cement conditions), HPMC viscosity collapses below 30% of its original value within 30 days. Hydroxypropyl substituents provide partial protection but cannot prevent the overall degradation driven by methoxyl cleavage.<\/p><h3>Viscosity Retention Data<\/h3><p>Laboratory testing of cellulose ethers at controlled pH conditions demonstrates the quantitative advantage of HEC:<\/p><table><tbody><tr><td><p>pH Condition<\/p><\/td><td><p>HEC Viscosity Retention (30 days)<\/p><\/td><td><p>CMC Viscosity Retention (30 days)<\/p><\/td><td><p>HPMC Viscosity Retention (30 days)<\/p><\/td><\/tr><tr><td><p>pH 7 (neutral reference)<\/p><\/td><td><p>&gt;98%<\/p><\/td><td><p>&gt;90%<\/p><\/td><td><p>&gt;95%<\/p><\/td><\/tr><tr><td><p>pH 10 (mild alkaline)<\/p><\/td><td><p>&gt;95%<\/p><\/td><td><p>~70%<\/p><\/td><td><p>&gt;85%<\/p><\/td><\/tr><tr><td><p>pH 12 (cement pore solution)<\/p><\/td><td><p><strong>&gt;90%<\/strong><\/p><\/td><td><p><strong>&lt;50%<\/strong><\/p><\/td><td><p><strong>&lt;30%<\/strong><\/p><\/td><\/tr><tr><td><p>pH 13 (fresh cement paste)<\/p><\/td><td><p>&gt;85%<\/p><\/td><td><p>&lt;30% (precipitation)<\/p><\/td><td><p>&lt;20% (severe hydrolysis)<\/p><\/td><\/tr><\/tbody><\/table><p>HEC is the only cellulose ether that maintains &gt;85% viscosity retention at both pH 12 and pH 13 \u2014 the exact conditions found in cement-based construction products. CMC&#8217;s performance at pH 12 is half of HEC&#8217;s and continues to deteriorate. HPMC&#8217;s performance at pH 12 is catastrophic, with over 70% viscosity loss driven by irreversible alkaline hydrolysis.<\/p><h3>The Structural Basis of Stability<\/h3><p>The critical difference is the \u03b2-hydroxyethyl ether bond in HEC versus the methyl ether bond in HPMC:<\/p><ul><li><strong>HEC hydroxyethyl group:<\/strong> -O-CH\u2082-CH\u2082-OH. The hydroxyl group at the \u03b2-position provides steric hindrance and electronic stabilization against nucleophilic attack. OH\u207b cannot easily access the ether oxygen, and the transition state for cleavage is energetically unfavorable.<\/li><\/ul><ul><li><strong>HPMC methoxyl group:<\/strong> -O-CH\u2083. No steric protection. OH\u207b can directly attack the methyl carbon, and the transition state leads to a stable methanol leaving group \u2014 making alkaline hydrolysis thermodynamically and kinetically favorable.<\/li><\/ul><p>This molecular-level difference explains why HEC survives pH 12\u201313 while HPMC degrades rapidly.<\/p><hr \/><h2>Product Specifications<\/h2><p><strong>Michem Hydroxyethyl Cellulose (HEC)<\/strong> \u2014 CAS No. 9004-62-0<\/p><h3>Grade Selection Table<\/h3><table><tbody><tr><td><p>Grade<\/p><\/td><td><p>Viscosity Range (mPa\u00b7s, Brookfield LV, 1%)<\/p><\/td><td><p>Ionic Character<\/p><\/td><td><p>pH Stability<\/p><\/td><td><p>Moisture<\/p><\/td><td><p>Ash<\/p><\/td><td><p>Enzyme Resistance<\/p><\/td><\/tr><tr><td><p>HE30KB<\/p><\/td><td><p>1,500\u20132,500<\/p><\/td><td><p>Non-ionic<\/p><\/td><td><p>2\u201312<\/p><\/td><td><p>\u22645%<\/p><\/td><td><p>\u22645%<\/p><\/td><td><p>Yes<\/p><\/td><\/tr><tr><td><p>HE60KB<\/p><\/td><td><p>2,500\u20133,500<\/p><\/td><td><p>Non-ionic<\/p><\/td><td><p>2\u201312<\/p><\/td><td><p>\u22645%<\/p><\/td><td><p>\u22645%<\/p><\/td><td><p>Yes<\/p><\/td><\/tr><tr><td><p>HE100KB<\/p><\/td><td><p>3,500\u20136,500<\/p><\/td><td><p>Non-ionic<\/p><\/td><td><p>2\u201312<\/p><\/td><td><p>\u22645%<\/p><\/td><td><p>\u22645%<\/p><\/td><td><p>Yes<\/p><\/td><\/tr><tr><td><p>HE150KB<\/p><\/td><td><p>6,500\u20138,500<\/p><\/td><td><p>Non-ionic<\/p><\/td><td><p>2\u201312<\/p><\/td><td><p>\u22645%<\/p><\/td><td><p>\u22645%<\/p><\/td><td><p>Yes<\/p><\/td><\/tr><\/tbody><\/table><h3>CMC Comparison Reference<\/h3><table><tbody><tr><td><p>Parameter<\/p><\/td><td><p>Michem HEC<\/p><\/td><td><p>Michem CMC<\/p><\/td><\/tr><tr><td><p>Ionic Character<\/p><\/td><td><p>Non-ionic<\/p><\/td><td><p>Anionic<\/p><\/td><\/tr><tr><td><p>Degree of Substitution (DS)<\/p><\/td><td><p>MS 1.8\u20132.5 (molar substitution)<\/p><\/td><td><p>DS 0.65\u20130.9<\/p><\/td><\/tr><tr><td><p>pH Stability Range<\/p><\/td><td><p>2\u201312<\/p><\/td><td><p>6.5\u20138.5<\/p><\/td><\/tr><tr><td><p>Performance at pH 12<\/p><\/td><td><p>&gt;90% viscosity retention<\/p><\/td><td><p>&lt;50% viscosity retention<\/p><\/td><\/tr><tr><td><p>Enzyme Resistance<\/p><\/td><td><p>Yes<\/p><\/td><td><p>No<\/p><\/td><\/tr><tr><td><p>CAS Number<\/p><\/td><td><p>9004-62-0<\/p><\/td><td><p>9004-32-4<\/p><\/td><\/tr><\/tbody><\/table><hr \/><h2>Practical Application Guide<\/h2><h3>HEC Dosage for Cement-Based Systems<\/h3><p>Michem HEC dosage in dry-mix cement products is calculated as a percentage of total dry powder weight. Recommended starting points:<\/p><table><tbody><tr><td><p>Cement-Based Product<\/p><\/td><td><p>Recommended HEC Grade<\/p><\/td><td><p>Typical Dosage (% wt)<\/p><\/td><td><p>Key Function<\/p><\/td><\/tr><tr><td><p>Tile adhesive (C1\/C2)<\/p><\/td><td><p>HE100KB \/ HE150KB<\/p><\/td><td><p>0.3\u20130.6%<\/p><\/td><td><p>Water retention, anti-sag, open time<\/p><\/td><\/tr><tr><td><p>Self-leveling compound<\/p><\/td><td><p>HE30KB \/ HE60KB<\/p><\/td><td><p>0.05\u20130.15%<\/p><\/td><td><p>Anti-bleeding, viscosity control<\/p><\/td><\/tr><tr><td><p>Cementitious grout<\/p><\/td><td><p>HE60KB \/ HE100KB<\/p><\/td><td><p>0.1\u20130.3%<\/p><\/td><td><p>Water retention, workability<\/p><\/td><\/tr><tr><td><p>Repair mortar<\/p><\/td><td><p>HE100KB<\/p><\/td><td><p>0.2\u20130.5%<\/p><\/td><td><p>Anti-sag, water retention<\/p><\/td><\/tr><tr><td><p>EIFS base coat<\/p><\/td><td><p>HE100KB \/ HE150KB<\/p><\/td><td><p>0.3\u20130.5%<\/p><\/td><td><p>Workability, water retention<\/p><\/td><\/tr><tr><td><p>Skim coat \/ wall putty<\/p><\/td><td><p>HE60KB<\/p><\/td><td><p>0.2\u20130.4%<\/p><\/td><td><p>Smooth application, anti-cracking<\/p><\/td><\/tr><\/tbody><\/table><h3>pH Monitoring Protocol<\/h3><p>For formulators transitioning from CMC or HPMC to HEC in cement-based products, monitoring the actual pH experienced by the thickener is critical:<\/p><ol><li><strong>Measure pore solution pH.<\/strong> Prepare a slurry of the dry-mix product with water at the specified water-to-powder ratio. After 30 minutes of hydration, extract pore solution using vacuum filtration and measure pH with a calibrated meter. Expect values of 12.5\u201313 for fresh cement systems.<\/li><\/ol><ol><li><strong>Track pH over time.<\/strong> Continue measuring pore solution pH at 1 hour, 6 hours, 24 hours, and 7 days. Cement pH typically remains above 12 for at least 7 days and often above 11 for 28 days \u2014 the entire period during which the thickener must function.<\/li><\/ol><ol><li><strong>Conduct viscosity retention tests.<\/strong> Prepare 1% HEC solutions buffered at pH 12 (simulated cement pore solution using saturated Ca(OH)\u2082). Measure Brookfield viscosity at 1 hour, 24 hours, 7 days, and 30 days. Michem HEC should retain &gt;90% of initial viscosity at all time points.<\/li><\/ol><ol><li><strong>Verify with full formulation.<\/strong> Incorporate HEC into the complete dry-mix formulation (cement, sand, fillers, and all additives including superplasticizer, RDP powder, calcium formate, and defoamer). Test workability, water retention, and sag resistance at both laboratory scale and field trial scale.<\/li><\/ol><h3>Best Practices for Cement-Based Formulations<\/h3><ul><li><strong>Dry-blend HEC with fillers first.<\/strong> Pre-mix HEC powder with fine fillers (CaCO\u2083, silica flour) before adding cement to ensure uniform dispersion and prevent localized HEC-rich zones that cause lumping.<\/li><\/ul><ul><li><strong>Use 80\u2013100 mesh grades.<\/strong> Finer particle size HEC hydrates faster and disperses more uniformly in dry-mix systems. Michem HEC grades are supplied at optimized mesh sizes for cement applications.<\/li><\/ul><ul><li><strong>Do not overdose.<\/strong> Excessive HEC (above 0.8% in tile adhesives, above 0.2% in self-leveling) can retard cement hydration and delay setting. Always conduct pilot testing before scaling.<\/li><\/ul><ul><li><strong>Combine with defoamer if needed.<\/strong> High-viscosity HEC grades (HE150KB) can entrain air during mixing. A small addition of powder defoamer (0.05\u20130.1%) eliminates this issue without affecting HEC performance.<\/li><\/ul><ul><li><strong>Store HEC dry.<\/strong> HEC is hygroscopic. Keep bags sealed and store in a dry environment below 35\u00b0C to prevent moisture uptake that reduces dissolution efficiency.<\/li><\/ul><hr \/><h2>Frequently Asked Questions<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be51d56 elementor-widget elementor-widget-accordion\" data-id=\"be51d56\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"accordion.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1991\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1991\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"icon icon-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"icon icon-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Why can't I just use CMC at a higher dosage to compensate for its pH 12 viscosity loss?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1991\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1991\"><p>Increasing CMC dosage does not solve the fundamental problem \u2014 it is not a potency issue, it is a mechanism failure. CMC&#8217;s anionic carboxymethyl groups rely on electrostatic chain extension, which is physically suppressed at pH 12\u201313 regardless of concentration. Adding more CMC simply adds more polymer that cannot extend its chains under alkaline conditions, wasting material without recovering viscosity. HEC&#8217;s non-ionic mechanism works at any dosage because it does not depend on pH-sensitive electrostatics.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1992\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1992\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"icon icon-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"icon icon-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Can HEC be used alongside superplasticizers (PCE\/SNF) in high-pH cement systems?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1992\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1992\"><p>Yes. HEC is fully compatible with both polycarboxylate ether (PCE) and sulfonated naphthalene formaldehyde (SNF) superplasticizers. The non-ionic nature of HEC means it does not compete with anionic superplasticizers for adsorption sites on cement particles. HEC provides water retention and rheology, while the superplasticizer provides dispersion and flow \u2014 the two function independently and synergistically.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1993\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-1993\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"icon icon-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"icon icon-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">How does HEC performance compare to MHEC in cement-based tile adhesives?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1993\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-1993\"><p>MHEC (Methyl Hydroxyethyl Cellulose) offers a different balance of properties \u2014 its methyl substitution provides thermal gelation for summer workability, and its hydroxyethyl groups provide some pH stability. However, MHEC&#8217;s methoxyl content still undergoes slow alkaline hydrolysis above pH 11. For standard cement tile adhesives where pH 12\u201313 exposure is sustained, HEC provides superior long-term viscosity stability. For high-temperature application conditions, MHEC&#8217;s thermal gelation advantage may justify its slightly lower pH stability. Contact Michem for application-specific grade recommendations.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1994\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-1994\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"icon icon-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"icon icon-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Does HEC's pH stability benefit products with high-alumina cement or gypsum binders?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1994\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-1994\"><p>Gypsum-based products operate at pH 7\u20139 \u2014 well within the comfort zone of all cellulose ethers. However, the benefit of using HEC in gypsum is formulation simplification: one thickener grade works across your entire product line (cement-based, gypsum-based, and blended binders), reducing inventory and QC complexity. High-alumina cement (HAC) systems can reach pH 11\u201312 during early hydration, making HEC&#8217;s pH stability valuable in these formulations as well.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1995\" class=\"elementor-tab-title\" data-tab=\"5\" role=\"button\" aria-controls=\"elementor-tab-content-1995\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"icon icon-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"icon icon-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">How should I validate HEC stability in my specific cement formulation?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1995\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"5\" role=\"region\" aria-labelledby=\"elementor-tab-title-1995\"><p>Request free Michem HEC samples (recommended starting grade: HE100KB) and run a 30-day viscosity retention test at your formulation&#8217;s actual water-to-powder ratio and storage temperature. Prepare HEC solutions at 1% concentration in both deionized water (control) and saturated Ca(OH)\u2082 solution (pH 12.4, simulates cement pore water). Measure Brookfield viscosity at 1 hour, 24 hours, 7 days, 14 days, and 30 days. The ratio of Ca(OH)\u2082 viscosity to deionized water viscosity at each time point gives your formulation-specific pH stability index. A ratio &gt;0.9 at 30 days confirms excellent pH stability.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6084793 elementor-widget elementor-widget-text-editor\" data-id=\"6084793\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Conclusion<\/h2><p>Cement-based construction products operate at pH 12\u201313 \u2014 a chemical environment that destroys the thickening performance of most cellulose ethers. CMC&#8217;s anionic mechanism collapses above pH 9 as hydroxide ions screen the electrostatic repulsion that extends polymer chains. HPMC&#8217;s methoxyl groups undergo irreversible alkaline hydrolysis above pH 11, cleaving substituents and destroying viscosity within days. Only HEC, with its fully non-ionic hydroxyethyl substitution, survives pH 12\u201313 intact \u2014 delivering &gt;90% viscosity retention after 30 days of sustained high-pH exposure.<\/p><p><a href=\"https:\/\/michemicals.com\/cellulose-ether\/hydroxyethyl-cellulose\/\">Michem HEC<\/a>, available in four precisely controlled viscosity grades from 1,500 to 8,500 mPa\u00b7s (HE30KB, HE60KB, HE100KB, HE150KB), provides cement product formulators with a single, chemically proven thickener platform that eliminates pH-related viscosity failures. Enzyme resistance, \u22645% moisture and ash content, and proven batch-to-batch consistency ensure reliable performance from laboratory formulation through full-scale production.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6200adb9 elementor-post-navigation-borders-yes elementor-widget elementor-widget-post-navigation\" data-id=\"6200adb9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"post-navigation.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-post-navigation\" role=\"navigation\" aria-label=\"Navigation de publication\">\n\t\t\t<div class=\"elementor-post-navigation__prev elementor-post-navigation__link\">\n\t\t\t\t<a href=\"https:\/\/michemicals.com\/fr\/retention-deau-cmc-vs-hpmc\/\" rel=\"prev\"><span class=\"post-navigation__arrow-wrapper post-navigation__arrow-prev\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-left\" viewBox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M34.52 239.03L228.87 44.69c9.37-9.37 24.57-9.37 33.94 0l22.67 22.67c9.36 9.36 9.37 24.52.04 33.9L131.49 256l154.02 154.75c9.34 9.38 9.32 24.54-.04 33.9l-22.67 22.67c-9.37 9.37-24.57 9.37-33.94 0L34.52 272.97c-9.37-9.37-9.37-24.57 0-33.94z\"><\/path><\/svg><span class=\"elementor-screen-only\">Pr\u00e9c\u00e9dent<\/span><\/span><span class=\"elementor-post-navigation__link__prev\"><span class=\"post-navigation__prev--title\">CMC vs HPMC Water Retention: Which Cellulose Ether Retains More Water in Mortar?<\/span><\/span><\/a>\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-post-navigation__separator-wrapper\">\n\t\t\t\t\t<div class=\"elementor-post-navigation__separator\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"elementor-post-navigation__next elementor-post-navigation__link\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-21646b8d e-con-full e-flex e-con e-child\" data-id=\"21646b8d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6d7f2f55 e-con-full e-flex e-con e-child\" data-id=\"6d7f2f55\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-55477796 elementor-widget elementor-widget-heading\" data-id=\"55477796\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div class=\"elementor-heading-title elementor-size-default\">Your\nReliable\nPartner\nFor\nCellulose\nEthers<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f197599 elementor-widget elementor-widget-button\" data-id=\"7f197599\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjMxMzYiLCJ0b2dnbGUiOmZhbHNlfQ%3D%3D\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get Brand Brochure<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3962cd3e e-con-full e-flex e-con e-child\" data-id=\"3962cd3e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_offset&quot;:50,&quot;sticky_parent&quot;:&quot;yes&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;],&quot;sticky_effects_offset&quot;:0,&quot;sticky_anchor_link_offset&quot;:0}\">\n\t\t<div class=\"elementor-element elementor-element-71c612ef e-con-full e-flex e-con e-child\" data-id=\"71c612ef\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-3e7c8074 e-con-full e-flex e-con e-child\" data-id=\"3e7c8074\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7c3997b8 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"7c3997b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-right\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8c137 0 248 111 248 248S393 504 256 504 8 393 8 256 119 8 256 8zM140 300h116v70.9c0 10.7 13 16.1 20.5 8.5l114.3-114.9c4.7-4.7 4.7-12.2 0-16.9l-114.3-115c-7.6-7.6-20.5-2.2-20.5 8.5V212H140c-6.6 0-12 5.4-12 12v64c0 6.6 5.4 12 12 12z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Product Listing<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4c10bcb4 elementor-align-right elementor-widget elementor-widget-button\" data-id=\"4c10bcb4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/products\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">View More &gt;&gt;&gt;<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74d908c2 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"74d908c2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4bbd703c elementor-align-left elementor-widget elementor-widget-button\" data-id=\"4bbd703c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/cellulose-ether\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Cellulose Ether<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-716c4541 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"716c4541\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/various-performance-additives\/rigid-redispersible-polymer-powder-excellent-adhesion\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Redispersible Polymer Powder<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7341156b elementor-align-left elementor-widget elementor-widget-button\" data-id=\"7341156b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/cellulose-ether\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Synthetic Fiber<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-218c3ada elementor-align-left elementor-widget elementor-widget-button\" data-id=\"218c3ada\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/superplasticizer\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Superplasticizer<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4dd26c02 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"4dd26c02\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/various-performance-additives\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Other Products<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58edb7f1 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"58edb7f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-right\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8c137 0 248 111 248 248S393 504 256 504 8 393 8 256 119 8 256 8zM140 300h116v70.9c0 10.7 13 16.1 20.5 8.5l114.3-114.9c4.7-4.7 4.7-12.2 0-16.9l-114.3-115c-7.6-7.6-20.5-2.2-20.5 8.5V212H140c-6.6 0-12 5.4-12 12v64c0 6.6 5.4 12 12 12z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Product Applications<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ade7409 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"1ade7409\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e1e2b41 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"6e1e2b41\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/construction-materials\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Construction Materials<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3895efcb elementor-align-left elementor-widget elementor-widget-button\" data-id=\"3895efcb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/paints-and-coatings\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Paints &amp; Coatings <\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1dbf48e7 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"1dbf48e7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/daily-chemicals-personal-care\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\"> Daily Chemicals &amp; Personal Care<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-359de536 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"359de536\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/building-materials\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Ceramics &amp; Building Materials<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53057499 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"53057499\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/michemicals.com\/oil-drilling-additives-solutions\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Oil Drilling<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28c9b27c elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"28c9b27c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-hand-point-right\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M428.8 137.6h-86.177a115.52 115.52 0 0 0 2.176-22.4c0-47.914-35.072-83.2-92-83.2-45.314 0-57.002 48.537-75.707 78.784-7.735 12.413-16.994 23.317-25.851 33.253l-.131.146-.129.148C135.662 161.807 127.764 168 120.8 168h-2.679c-5.747-4.952-13.536-8-22.12-8H32c-17.673 0-32 12.894-32 28.8v230.4C0 435.106 14.327 448 32 448h64c8.584 0 16.373-3.048 22.12-8h2.679c28.688 0 67.137 40 127.2 40h21.299c62.542 0 98.8-38.658 99.94-91.145 12.482-17.813 18.491-40.785 15.985-62.791A93.148 93.148 0 0 0 393.152 304H428.8c45.435 0 83.2-37.584 83.2-83.2 0-45.099-38.101-83.2-83.2-83.2zm0 118.4h-91.026c12.837 14.669 14.415 42.825-4.95 61.05 11.227 19.646 1.687 45.624-12.925 53.625 6.524 39.128-10.076 61.325-50.6 61.325H248c-45.491 0-77.21-35.913-120-39.676V215.571c25.239-2.964 42.966-21.222 59.075-39.596 11.275-12.65 21.725-25.3 30.799-39.875C232.355 112.712 244.006 80 252.8 80c23.375 0 44 8.8 44 35.2 0 35.2-26.4 53.075-26.4 70.4h158.4c18.425 0 35.2 16.5 35.2 35.2 0 18.975-16.225 35.2-35.2 35.2zM88 384c0 13.255-10.745 24-24 24s-24-10.745-24-24 10.745-24 24-24 24 10.745 24 24z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Contact Us<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6de763d0 elementor-widget elementor-widget-text-editor\" data-id=\"6de763d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Please contact me for the latest quote or to request a sample test (our samples are free and include shipping).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-442491c5 elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"442491c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"New Form\" aria-label=\"New Form\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"11556\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"442491c5\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"Why HEC Maintains Viscosity Stability in High-pH Cement Environments (pH 12\u201313) - Michem Chemical\" \/>\n\n\t\t\t\t\t\t\t<input type=\"hidden\" name=\"queried_id\" value=\"11556\"\/>\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-above\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Name\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-tel elementor-field-group elementor-column elementor-field-group-Phone elementor-col-100 elementor-field-required\">\n\t\t\t\t\t<span class=\"ccfef-editor-intl-input\" data-id=\"form-field-Phone\" data-field-id=\"c8411e0\" data-default-country=\"us\" data-include-countries=\"\" data-exclude-countries=\"\" data-dial-code-visibility=\"show\" data-strict-mode=\"no\" style=\"display: none;\"><\/span>\t\t<input size=\"1\" type=\"tel\" name=\"form_fields[Phone]\" id=\"form-field-Phone\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" required=\"required\" pattern=\"[0-9()#&amp;+*-=.]+\" title=\"Only numbers and phone characters (#, -, *, etc) are accepted.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Email\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-Company elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[Company]\" id=\"form-field-Company\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Company\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Message\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-double-right\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34zm192-34l-136-136c-9.4-9.4-24.6-9.4-33.9 0l-22.6 22.6c-9.4 9.4-9.4 24.6 0 33.9l96.4 96.4-96.4 96.4c-9.4 9.4-9.4 24.6 0 33.9l22.6 22.6c9.4 9.4 24.6 9.4 33.9 0l136-136c9.4-9.2 9.4-24.4 0-33.8z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Send Inquiry Now<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-790476e1 e-flex e-con-boxed e-con e-parent\" data-id=\"790476e1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Introduction HEC (Hydroxyethyl Cellulose) maintains viscosity stability in high-pH cement environments (pH 12\u201313) because its non-ionic molecular structure lacks carboxyl groups that would ionize or deprotonate under alkaline conditions \u2014 unlike CMC (anionic, DS-dependent) and HPMC (methoxyl groups susceptible to alkaline hydrolysis). HEC&#8217;s purely hydroxyethyl substitution creates a chemically inert thickener that resists the nucleophilic [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":11566,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_angie_page":false,"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","page_builder":"","footnotes":""},"categories":[1],"tags":[247,248],"class_list":["post-11556","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-hec-in-high-ph-cement-environments","tag-hec-maintains-viscosity-stability"],"_links":{"self":[{"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/posts\/11556","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/comments?post=11556"}],"version-history":[{"count":3,"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/posts\/11556\/revisions"}],"predecessor-version":[{"id":11569,"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/posts\/11556\/revisions\/11569"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/media\/11566"}],"wp:attachment":[{"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/media?parent=11556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/categories?post=11556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/michemicals.com\/fr\/wp-json\/wp\/v2\/tags?post=11556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}