ACRYLIC ACID/ACRYLAMIDOMETHYL PROPANE SULFONIC ACID COPOLYMER- ▸ Scale inhibitor: Controls calcium, phosphate, and iron scale in process water.
- ▸ Dispersant: Disperses particulate and mineral foulants.
- ▸ Water treatment: Cooling-water, boiler, and RO-membrane antiscalant formulations.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid copolymer (CAS 40623-75-4) is a water-soluble anionic acrylic copolymer. Copolymers of this class are used in water treatment as scale inhibitors and dispersants, controlling calcium, phosphate, and iron scale in cooling water, boilers, and reverse-osmosis systems.
Regulatory & registration requirements
- TSCA (US):
- REACH (EU): Not determined from public registry
- EC number: 609-852-3
TSCA Inventory flag PMN: a commenced PMN (premanufacture notice) substance (EPA flag legend).
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid copolymer used for?
Acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid copolymer (CAS 40623-75-4) is a water-soluble anionic acrylic copolymer used in water treatment as a scale inhibitor and dispersant. It controls calcium, phosphate, and iron scale in cooling water, boilers, and reverse-osmosis systems. RawSource supplies it for water-treatment formulation.
How does acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid copolymer work as a scale inhibitor?
The copolymer combines carboxylate (acrylic acid) and sulfonate (2-acrylamido-2-methylpropanesulfonic acid) groups, which adsorb onto mineral nuclei and disperse particulate foulants, suppressing calcium, phosphate, and iron scale and improving tolerance in high-hardness and high-iron waters. Recommended dosage depends on system water chemistry; refer to the technical data sheet.
Is acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid copolymer water soluble?
Yes. It is a water-soluble anionic copolymer, typically supplied as an aqueous solution for direct dosing into water-treatment formulations. Active solids are confirmed on the Certificate of Analysis.
What is the CAS number and identity of the acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid copolymer?
The copolymer is identified by CAS 40623-75-4 (acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid copolymer). Molecular weight range and active solids vary by grade and are defined on the lot CoA; specify your target grade when ordering.
How is bulk acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid copolymer packaged and quoted?
RawSource supplies water-treatment polymers in drums, IBCs/totes, and bulk to formulators. Active solids, packaging, lead time, and pricing are quoted per order; submit volume and destination for a bulk quote, with SDS and CoA on shipment.
What is the REACH and TSCA regulatory status of Acrylic Acid / 2-Acrylamido-2-methylpropanesulfonic Acid Copolymer?
Acrylic Acid / 2-Acrylamido-2-methylpropanesulfonic Acid Copolymer (CAS 40623-75-4) is listed as Active on the U.S. EPA TSCA Inventory; its REACH registration status is not determined from the public ECHA registry.
What is the CAS number of Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer?
The CAS number of Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer is 40623-75-4.