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

CAS No.:


Structure Formula:

PAAS structure formula


AppearanceColorless or light yellow transparent liquid
Solid content, %50 Min.
Free monomer (CH2=CH-COOH), %1.0 Max.
Density (20℃), g/cm31.2 Min.
pH (1%  solution)3.0-4.5
Note: 40%, 45% are supplied too.


Polyacrylic acid sodium can be used as a scale inhibitor and dispersant in circulating cool water systems, such as power plants, iron & steel factories, chemical fertilizer plants, refineries, and air conditioning systems.


Dosage should be by water quality and equipment materials. When used alone, 2~15 mg/L is preferred. When used as a dispersant, the dosage should be determined by experiment.

Packing and Storage:

200L plastic drum, IBC(1000L), customers’ requirement. Storage for ten months in a shady room and dry place.

200l plastic drum 1000l IBC


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