Description

Poly(2-Acrylamido-2-Methylpropane Sulfonic Acid), Sodium Salt is a high-performance, water-soluble anionic polyelectrolyte derived from the monomer AMPS (2-acrylamido-2-methylpropanesulfonic acid). This compound matters for its exceptional thermal stability, hydrolytic resistance, and ability to function effectively in high-electrolyte environments where other polymers fail. It is a critical material for industries requiring robust dispersants, scale inhibitors, and viscosity modifiers, such as water treatment, oilfield chemicals, personal care, and coatings.

Application

• Water Treatment: Acts as a highly effective dispersant and antiscalant in cooling water, boiler water, and reverse osmosis systems, particularly in high-hardness and high-temperature conditions.
• Oilfield Chemicals: Used in drilling fluids and enhanced oil recovery (EOR) formulations as a viscosifier and fluid loss control agent that is stable in brines.
• Personal Care & Cosmetics: Serves as a superior film-forming agent, anti-static agent, and thickener in hair care products (e.g., styling gels, shampoos) and skincare formulations.
• Coatings & Paints: Functions as a pigment dispersant and rheology modifier in aqueous coatings, improving color development and stability.
• Textile & Paper Industries: Employed as a dye dispersant, sizing agent, and retention aid due to its strong anionic character and compatibility with other process chemicals.
• Construction Chemicals: Used as a superplasticizer and water-reducing component in high-performance concrete admixtures.

Basic Information

Product Name	Poly(2-Acrylamido-2-Methylpropane Sulfonic Acid), Sodium Salt
CAS No.	35641-59-9
Molecular Formula	(C7H12NNaO4S)n
Molecular Weight	~ 1,000 - 2,000,000 g/mol (variable, based on polymerization degree)
Synonyms	Poly(AMPS) sodium salt; Poly(sodium 2-acrylamido-2-methylpropanesulfonate); Sodium poly(2-acrylamido-2-methylpropanesulfonate); AMPS polymer (Na salt); Poly(2-acrylamido-2-methyl-1-propanesulfonic acid) sodium salt; PAS-Na; Anionic polyacrylamide derivative
EINECS	Contact for details

Quality Control

Our Poly(AMPS) Sodium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous testing to ensure consistent performance, including analysis of molecular weight distribution, solids content, ionic character, and impurity profiles. Certificates of Analysis (COA) detailing all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or aqueous solution
Solids Content	≥ 95% (Powder) or as specified (Solution)
pH (1% aqueous solution)	6.0 - 8.0
Viscosity (Brookfield, specific conc.)	Contact for details
Molecular Weight (Mw)	Low, Medium, High (Custom ranges available)
Sulfonate Content	≥ 90% of theoretical
Residual Monomer (AMPS)	< 0.1%
Identification (IR)	Conforms to structure

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.