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Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents
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Polycarboxylic Antiscalant and Dispersant
Biocide and Algicide
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Surfactant & Others

Polyacrylic Acid Sodium Salt (PAAS)

CAS No. 9003-04-7 EINECS No. 618-349-8
Molecular Formula (C3H3O2Na)n Molecular Weight 3000~5000
Structural Formula

PAAS Structural Formula

Product Features

PAAS is sodium salt of Polyacrylic acid(PAA), it is innoxious and soluble in water.PAAS can be used in situations of alkaline and high concentration without scale sediment. PAAS can disperse the microcrystals or microsand of calcium carbonate, calcium phosphate and calcium sulfate. PAAS is used as scale inhibition and dispersant for circulating cool water system, papermaking, weave, dyeing, ceramic, painting, etc.

Technical Specification

Parameter Standard
Appearance White Powder
Solid content, % 92.0 min
Moisture, % 8.0 max
pH(1% water solution) 7.0-9.0

Applications & Usage

PAAS can be used as scale inhibitor and dispersant in circulating cool water systems in power plants, iron & steel factories, chemical fertilizer plants, Powdered laundry detergents, refineries and air conditioning systems.

Scale & Corrosion Inhibition Performance

CaCO3 inhibition CaSO4 inhibition BaSO4 inhibition Silicate inhibition
Excellent Very good Good Good
Calcium tolerance Clay/Silt Dispersion Thermal Stability Iron Oxide Dispersion
Excellent Very good Excellent Very Good

Package & Storage

25L Drum Bulk Bag
Storage for 10 months in shady room and dry place.

Hazard & Safety Precaution

Hazard Satety Precaution

Not regulated

Once contacted with eye and skin, flush with plenty of clean water

Alternative Name / Synonyms

  1. PAAS;
  3. Polyacrylic Acid Sodium Salt;
  4. Poly(acrylic acid sodium salt);2-Propenoic acid, homopolymer, sodium salt
  5. 2-Propenoic acid,
  6. homopolymer,
  7. sodium salt