{"id":6076,"date":"2026-01-24T13:14:41","date_gmt":"2026-01-24T05:14:41","guid":{"rendered":"https:\/\/www.watercarechem.com\/?post_type=product&#038;p=6076"},"modified":"2026-02-15T23:02:56","modified_gmt":"2026-02-15T15:02:56","slug":"aa-amps-copolymer","status":"publish","type":"product","link":"https:\/\/www.watercarechem.com\/nl\/product\/aa-amps-copolymer\/","title":{"rendered":"AA\/AMPS Copolymer (CAS 40623-75-4)"},"content":{"rendered":"<h1>AA\/AMPS Copolymer: High-Performance Sulfonated Polyacrylic Acid Scale Inhibitor<\/h1>\n<p><strong>AA\/AMPS<\/strong> (Acrylic Acid\/2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer) is a high-efficiency sulfonated polyacrylic acid copolymer designed for the most demanding industrial water treatment environments. By combining the strong dispersing properties of <strong>carboxylic groups<\/strong> with the high polarity and calcium tolerance of <strong>sulfonic acid groups<\/strong>, AA\/AMPS stands as an industry-standard solution for preventing mineral scale in high pH, highly alkaline, and high-temperature conditions.<\/p>\n<p>As a core product at <strong>WaterCareChem<\/strong>, our AA\/AMPS Copolymer (CAS No. 40623-75-4) is specifically engineered to handle complex water chemistry where standard polymers like <a href=\"https:\/\/www.watercarechem.com\/nl\/product\/polyacrylic-acid-paa-polymer\/\" target=\"_blank\" rel=\"noopener\">PAA<\/a> or PAAS often reach their performance limits. It is particularly effective in controlling calcium phosphate, calcium carbonate, and stabilized zinc scale.<\/p>\n<h2>Chemical Mechanism &amp; Structural Advantages<\/h2>\n<p>The molecular structure of <strong>AA\/AMPS<\/strong> contains two critical functional groups that provide a dual-action mechanism:<\/p>\n<ul>\n<li><strong>Carboxylic Acid Groups:<\/strong> Responsible for lattice distortion and exceptional dispersion of carbonate and sulfate scales.<\/li>\n<li><strong>Sulfonic Acid Groups (AMPS):<\/strong> Provides strong polarity and high calcium tolerance. Unlike standard acrylic polymers, the sulfonic group remains highly soluble even in the presence of high concentrations of calcium ions, preventing the &#8220;calcium-polymer precipitation&#8221; that can plague less advanced systems.<\/li>\n<\/ul>\n<p>This synergistic combination ensures that AA\/AMPS remains active in water with a <strong>high concentration index<\/strong>, making it an ideal choice for modern zero-liquid discharge (ZLD) or high-cycle industrial cooling systems.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6078 size-thumbnail\" src=\"https:\/\/i0.wp.com\/www.watercarechem.com\/wp-content\/uploads\/2026\/01\/AA-AMPS-Copolymer-structure.png?resize=150%2C150&#038;ssl=1\" alt=\"\" width=\"150\" height=\"150\" title=\"\" srcset=\"https:\/\/i0.wp.com\/www.watercarechem.com\/wp-content\/uploads\/2026\/01\/AA-AMPS-Copolymer-structure.png?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.watercarechem.com\/wp-content\/uploads\/2026\/01\/AA-AMPS-Copolymer-structure.png?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.watercarechem.com\/wp-content\/uploads\/2026\/01\/AA-AMPS-Copolymer-structure.png?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.watercarechem.com\/wp-content\/uploads\/2026\/01\/AA-AMPS-Copolymer-structure.png?resize=12%2C12&amp;ssl=1 12w, https:\/\/i0.wp.com\/www.watercarechem.com\/wp-content\/uploads\/2026\/01\/AA-AMPS-Copolymer-structure.png?resize=285%2C285&amp;ssl=1 285w, https:\/\/i0.wp.com\/www.watercarechem.com\/wp-content\/uploads\/2026\/01\/AA-AMPS-Copolymer-structure.png?resize=270%2C270&amp;ssl=1 270w, https:\/\/i0.wp.com\/www.watercarechem.com\/wp-content\/uploads\/2026\/01\/AA-AMPS-Copolymer-structure.png?resize=540%2C540&amp;ssl=1 540w, https:\/\/i0.wp.com\/www.watercarechem.com\/wp-content\/uploads\/2026\/01\/AA-AMPS-Copolymer-structure.png?resize=660%2C660&amp;ssl=1 660w, https:\/\/i0.wp.com\/www.watercarechem.com\/wp-content\/uploads\/2026\/01\/AA-AMPS-Copolymer-structure.png?w=800&amp;ssl=1 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/p>\n<h2>Technical Specifications (CAS No. 40623-75-4)<\/h2>\n<p>Our AA\/AMPS is produced under strict quality control to ensure optimal molecular weight distribution and performance consistency.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; color: #333 !important;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">Item<\/th>\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">Index<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Uiterlijk<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Colorless or light yellow transparent liquid<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Solid content, %<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">40 Min.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Free monomer (as AA), %<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">0.8 Max.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Density (20\u2103), g\/cm\u00b3<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">1.15 Min.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>pH (1% wateroplossing)<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">3.5 ~ 4.5<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Viscosity (25\u2103), mpa.s<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">90 ~ 300<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Key Performance Benefits<\/h2>\n<h3>1. Exceptional Calcium Phosphate Inhibition<\/h3>\n<p>In modern water treatment, phosphate-based corrosion inhibitors are widely used. However, they carry the risk of forming calcium phosphate scale. <strong>AA\/AMPS<\/strong> is internationally recognized for its superior ability to stabilize phosphate and prevent the precipitation of calcium phosphate even at high pH levels.<\/p>\n<h3>2. Stabilization of Zinc Salts<\/h3>\n<p>Zinc-based programs are common for corrosion protection. AA\/AMPS acts as a stabilizer for zinc ions, preventing the formation of zinc-based scales (&#8220;zinc sludge&#8221;) on heat transfer surfaces, thereby maintaining system efficiency.<\/p>\n<h3>3. High Iron Dispersion<\/h3>\n<p>AA\/AMPS is excellent at preventing the deposition of <strong>ferric oxide<\/strong> (iron rust). This makes it indispensable in metallurgy systems and iron &amp; steel plants where iron contamination is a frequent challenge.<\/p>\n<h3>4. Synergistic Effects with Phosphonates<\/h3>\n<p>When formulated with organophosphines (such as <a href=\"https:\/\/www.watercarechem.com\/nl\/product\/hedp-antiscalant-corrosion-inhibitor\/\" target=\"_blank\" rel=\"noopener\">HEDP<\/a>, PBTCA, or <a href=\"https:\/\/www.watercarechem.com\/nl\/product\/atmp-antiscalant-corrosion-inhibitor\/\" target=\"_blank\" rel=\"noopener\">ATMP<\/a>), AA\/AMPS exhibits a significant synergistic effect. It enhances the overall scale inhibition threshold, allowing for lower chemical consumption while achieving better results.<\/p>\n<h2>Industrial Applications<\/h2>\n<p>Due to its robust chemical stability, AA\/AMPS Copolymer is used across a variety of harsh industrial environments:<\/p>\n<ul>\n<li><strong>Open Circulating Cooling Water Systems:<\/strong> Primary scale inhibitor for power plants, refineries, and chemical manufacturing.<\/li>\n<li><strong>Oilfield Water Injection:<\/strong> Used in refill water systems to prevent scaling in downhole equipment and pipelines, even in high-salinity brine.<\/li>\n<li><strong>Metallurgy &amp; Steel Production:<\/strong> Dispersing iron oxide and mineral scale in high-heat exchange environments.<\/li>\n<li><strong>Textile Industry:<\/strong> Functions as a high-performance dyeing auxiliary, preventing mineral interference with dyes and ensuring uniform color application.<\/li>\n<\/ul>\n<h2>Usage and Dosage Recommendations<\/h2>\n<p>For standard circulating cooling water systems, AA\/AMPS can be used alone or in combination with organophosphines and zinc salts.<\/p>\n<ul>\n<li><strong>Stand-alone Dosage:<\/strong> Typically 10~30 mg\/L depending on water hardness.<\/li>\n<li><strong>Formulated Use:<\/strong> When combined with zinc salts or phosphonates in a balanced program, it is effective within a pH range of <strong>7.0 to 9.5<\/strong>.<\/li>\n<\/ul>\n<p><em>Note: Actual dosage should be optimized based on a comprehensive water analysis and the specific concentration index of your system.<\/em><\/p>\n<h2>Packing and Storage<\/h2>\n<p><strong>Verpakking:<\/strong> Available in 200L plastic drums (net weight approx. 250kg) or 1000L IBC tanks (net weight approx. 1250kg). Custom packaging is available upon request for bulk orders.<\/p>\n<p><strong>Opslag:<\/strong> Store in a cool, dry, and well-ventilated area. Keep containers tightly closed when not in use. The shelf life is 10 months under proper storage conditions.<\/p>\n<h2>Safety Information<\/h2>\n<p>AA\/AMPS is acidic. Avoid contact with eyes and skin. In case of contact, rinse immediately with plenty of water. Refer to the <strong>AA\/AMPS MSDS<\/strong> for comprehensive safety and handling instructions.<\/p>\n<hr \/>\n<h2>Frequently Asked Questions (FAQ)<\/h2>\n<h3>What is the difference between PAA and AA\/AMPS?<\/h3>\n<p>While PAA (Polyacrylic Acid) is an excellent general-purpose dispersant, <strong>AA\/AMPS<\/strong> contains sulfonic acid groups that provide much higher calcium tolerance. This means AA\/AMPS will not precipitate out of water in high-hardness or high-alkalinity conditions where PAA might fail.<\/p>\n<h3>Why is AA\/AMPS preferred for oilfield applications?<\/h3>\n<p>Oilfield injection water often contains complex salts and high mineral content. AA\/AMPS remains stable and active in high-salinity environments, making it more effective at preventing scale in deep wells and transport pipes than standard carboxylic polymers.<\/p>\n<h3>Can AA\/AMPS be used in high-temperature systems?<\/h3>\n<p>Yes, the carbon-sulfonic acid bond in the AMPS monomer is more thermally stable than simple carboxylic bonds, allowing the copolymer to maintain its scale-inhibiting properties at higher temperatures found in boilers and heat exchangers.<\/p>\n<hr \/>\n<div style=\"text-align: center; margin-top: 30px;\"><a style=\"background-color: #0073aa; color: #fff; padding: 15px 30px; text-decoration: none; border-radius: 5px; font-weight: bold; font-size: 18px;\" href=\"https:\/\/www.watercarechem.com\/nl\/contact-us\/\" target=\"_blank\">Request AA\/AMPS Sample &amp; Quote<\/a><\/div>\n<p style=\"text-align: center; color: #777; font-size: 12px; margin-top: 10px;\">Synonyms: Sulfonated Polyacrylic Acid Copolymer; AA\/AMPS; Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer; CAS 40623-75-4.<\/p>","protected":false},"excerpt":{"rendered":"<p>AA\/AMPS (CAS 40623-75-4) is a premium sulfonated polyacrylic acid copolymer. It offers exceptional calcium tolerance and superior scale inhibition for calcium phosphate, calcium carbonate, and zinc scale. <span class=\"citation-6 citation-end-6\">Ideal for high pH industrial water systems, oilfield refill water, and as a textile dyeing auxiliary.<\/span> Active Content: 40% Min.<\/p>","protected":false},"featured_media":6077,"comment_status":"open","ping_status":"closed","template":"","meta":{"_crdt_document":"","_lmt_disableupdate":"no","_lmt_disable":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"product_brand":[],"product_cat":[836],"product_tag":[977,978,351,386,972,973,974,975,976],"class_list":{"0":"post-6076","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-polycarboxylic-antiscalants-dispersants","7":"product_tag-zinc-scale-stabilizer","8":"product_tag-high-calcium-tolerance-ferric-oxide-dispersant","9":"product_tag-scale-inhibitor","10":"product_tag-dispersant","11":"product_tag-aa-amps","12":"product_tag-aa-amps-copolymer","13":"product_tag-cas-40623-75-4","14":"product_tag-acrylic-acid-2-acrylamido-2-methylpropane-sulfonic-acid-copolymer","15":"product_tag-calcium-phosphate-inhibitor","16":"pa_cas-no-40623-75-4","18":"first","19":"instock","20":"taxable","21":"shipping-taxable","22":"product-type-simple"},"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/product\/6076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/comments?post=6076"}],"version-history":[{"count":1,"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/product\/6076\/revisions"}],"predecessor-version":[{"id":6079,"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/product\/6076\/revisions\/6079"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/media\/6077"}],"wp:attachment":[{"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/media?parent=6076"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/product_brand?post=6076"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/product_cat?post=6076"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.watercarechem.com\/nl\/wp-json\/wp\/v2\/product_tag?post=6076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}