Water Treatment Chemicals, Phosphonates, Polymers, Biocides


Polycarboxylic antiscale and dispersant

Polyacrylic Acid Sodium (PAAS)

CAS No.:9003-04-7 

Structural Formula:

Polyacrylic Acid Sodium (PAAS) Structural Formula


Polyacrylic Acid Sodium is innoxious and soluble in water, it 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.


items index
Appearance Colorless or light yellow transparent liquid
Solid content % 50 min
Free monomer (CH2=CH-COOH) % 1.0 max
Density (20℃)g/cm3 1.20min
pH (1% water solution) 3.0-4.5

40%, 45% Polyacrylic Acid Sodium are supplied.


PAAS can be used as scale inhibitor and dispersant in circulating cool water systems in power plants, iron & steel factories, chemical fertilizer plants, refineries and air conditioning systems. Dosage should be in accordance with water quality and equipment materials. When PAAS used alone, 2-15mg/L is preferred. When Polyacrylic Acid Sodium used as dispersant, the dosage should be determined by experiment.

Package and Storage:

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


Polyacrylic Acid, (PAA)
Phosphino Carboxylic Acid Polymer(PCA)
Sodium of Polyaspartic Acid (PASP)

Shandong IRO Water Treatment Co., Ltd.

Office Address: 2802, 1st Building, No.19 Zhangzhou 2nd Rd, Qingdao, China
Factory Address: Qicun Town, Shizhong, Zaozhuang, Shandong, China
Tel: +86-532-85027466 Fax: +86 532 85028486
Email: info@irowater.com

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