Description

Sodium Polyacrylate CAS NO 9003-04-7 is a high molecular weight, anionic polymer derived from acrylic acid. This superabsorbent polymer is valued for its exceptional ability to absorb and retain hundreds of times its weight in aqueous fluids, forming a stable gel. It is a critical material for manufacturers requiring advanced water management and thickening capabilities across diverse sectors. Key industries that rely on this compound include personal care, agriculture, water treatment, and construction.

Application

• Personal Care & Hygiene: Primary superabsorbent polymer (SAP) in disposable diapers, adult incontinence products, and feminine hygiene items for superior fluid retention and lock-in.
• Agriculture & Horticulture: Used as a soil conditioner and water-retaining agent to improve moisture availability for plants, reduce irrigation frequency, and enhance seedling survival rates.
• Industrial & Construction: Functions as a viscosity modifier and thickener in coatings, adhesives, and cementitious materials; also used in waterproofing membranes and cable water-blocking tapes.
• Water Treatment: Employed as a flocculant and coagulant aid to clarify process water and wastewater by aggregating fine suspended particles.
• Packaging: Incorporated into absorbent pads for food packaging to control leakage and moisture in trays containing fresh meat, poultry, and seafood.
• Medical & Laboratory: Utilized in wound dressings for exudate management and in various gel-based applications.

Basic Information

Product Name	Sodium Polyacrylate
CAS No.	9003-04-7
Molecular Formula	(C3H3NaO2)n
Molecular Weight	Variable (High polymer)
Synonyms	Poly(acrylic acid) sodium salt; Acrylic acid homopolymer sodium salt; Sodium poly(acrylate); SAP (Superabsorbent Polymer); 2-Propenoic acid, homopolymer, sodium salt; PAAS; ASAP; Acrysol ASE-60
EINECS	Contact for details

Quality Control

Our Sodium Polyacrylate is manufactured under a stringent quality management system. Each batch is tested against critical parameters including absorbency capacity (under load and free swell), residual monomer content, particle size distribution, and pH to ensure consistent performance. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing the specific results for your quality assurance records. Production can adhere to relevant standards for hygiene, food contact, or industrial applications as required.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent caking and degradation due to atmospheric moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White granular powder or beads
Absorbency (0.9% NaCl)	≥ 30 g/g
Residual Monomer (Acrylic Acid)	≤ 300 ppm
Moisture Content	≤ 8 %
pH (1% Solution)	6.0 - 8.0
Particle Size (Main Fraction)	150 - 850 μm
Bulk Density	0.4 - 0.8 g/ml

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