Description

Poly(Methacrylic Acid), Sodium Salt is a high molecular weight, water-soluble anionic polymer derived from methacrylic acid. This versatile compound is valued for its exceptional thickening, dispersing, and water-retention properties in aqueous systems. It is a critical raw material for formulators in the personal care, pharmaceutical, and industrial water treatment sectors seeking to enhance product performance and stability.

Application

• Personal Care & Cosmetics: Acts as a primary thickener, stabilizer, and film-forming agent in hair gels, styling mousses, creams, lotions, and sunscreen formulations.
• Pharmaceuticals: Used as a disintegrant and binder in tablet formulations, and as a viscosity-modifying agent in topical gels and ophthalmic solutions.
• Water Treatment: Serves as an effective scale inhibitor and dispersant for calcium carbonate and other inorganic salts in cooling water and boiler water systems.
• Detergents & Cleaners: Enhances the viscosity and suspension properties of liquid soaps, dishwashing liquids, and industrial cleaners.
• Textile & Paper Industries: Utilized as a processing aid, thickener for dyes and coatings, and to improve wet-strength in paper products.
• Adhesives & Paints: Functions as a rheology modifier and protective colloid to control the application properties and stability of water-based formulations.

Basic Information

Product Name	Poly(Methacrylic Acid), Sodium Salt
CAS No.	25086-62-8
Molecular Formula	(C4H5NaO2)n
Molecular Weight	~ (96.06)n g/mol (monomer unit)
Synonyms	Sodium Polymethacrylate; PMAA-Na; Poly(sodium methacrylate); Methacrylic Acid Polymer Sodium Salt; Sodium Poly(methacrylate); 2-Propenoic acid, 2-methyl-, homopolymer, sodium salt; Dispex G40; Sokalan CP 5
EINECS	246-674-1

Quality Control

Our Poly(Methacrylic Acid), Sodium Salt is manufactured under a strict quality management system. Each batch is tested to ensure consistent viscosity, solid content, pH, and ionic character. Certificates of Analysis (COA) documenting these parameters are available upon request, providing full traceability and compliance data for your quality assurance protocols.

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); ensure the container is securely sealed after each use to prevent caking or degradation due to moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Solid Content	≥ 94.0 %
pH (1% aqueous solution)	6.0 - 8.0
Viscosity (Brookfield, 25°C)	Specified per grade
Residual Monomer	≤ 0.5 % (by HPLC)
Loss on Drying	≤ 6.0 %
Sodium Content	Reported on COA

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