Description

Polymethacrylic Acid, Ammonium Salt is a water-soluble polyelectrolyte derived from methacrylic acid. This compound is valued for its excellent dispersing, scale-inhibiting, and viscosity-modifying properties in aqueous systems. It is primarily utilized in industrial water treatment, detergent formulations, and as a processing aid in various manufacturing sectors where control of mineral deposits and particle suspension is critical.

Application

• Industrial Water Treatment: Acts as a highly effective scale and corrosion inhibitor in cooling water, boiler water, and reverse osmosis systems.
• Detergent & Cleaner Formulations: Serves as a dispersant and anti-redeposition agent to enhance cleaning efficiency and prevent soil from re-adhering to fabrics or surfaces.
• Paper & Pulp Industry: Used as a retention aid and dispersant to improve paper quality and manufacturing process efficiency.
• Textile Processing: Functions as a dye dispersant and anti-precipitant to ensure uniform coloration and prevent dye agglomeration.
• Ceramic & Clay Processing: Employed as a deflocculant to control the rheology of slips and slurries.
• Oilfield Applications: Used in drilling muds and completion fluids as a rheology modifier and fluid loss control additive.
• Personal Care Products: Can be found in select formulations as a thickener and stabilizer.

Basic Information

Item	Details
Product Name	Polymethacrylic Acid, Ammonium Salt
CAS No.	28805-15-4
Molecular Formula	(C₄H₆O₂)ₙ·xNH₃
Molecular Weight	Variable (Polymer)
Synonyms	Ammonium Polymethacrylate; Poly(methacrylic acid), ammonium salt; Ammonium salt of polymethacrylic acid; PMAA-NH4; Methacrylic acid homopolymer, ammonium salt; 2-Methyl-2-propenoic acid homopolymer ammonium salt; Ammonium poly(methylacrylate)
EINECS	Contact for details

Quality Control

Our Polymethacrylic Acid, Ammonium Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent performance, including assay, viscosity, pH, and residual monomer content. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee traceability and compliance with your specifications.

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 when not in use to prevent absorption of atmospheric moisture, which may affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (as solid)	≥ 95.0 %
pH (1% aqueous solution)	6.0 - 8.0
Viscosity (Brookfield, 25°C)	Specified per grade
Loss on Drying	≤ 5.0 %
Residual Monomer (Methacrylic Acid)	≤ 0.5 %

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