CAS No.  904 
Structural Formula:

Properties:
PAA is innoxious and soluble in water, it can be used in situations of alkaline and high concentration without scale sediment. PAA can disperse the microcrystals or microsand of calcium carbonate, calcium phosphate and calcium sulfate. PAA is used as scale inhibitor and dispersant for circulating cool water system, papermaking, weave, dyeing, ceramic, painting, etc.
Specification:

Items	Index
Appearance	Colorless to light yellow transparent liquid	Colorless to light yellow transparent liquid
Solid content %	30.0 min	50.0 min
Free monomer (as AA) %	0.50 max	0.50 max
Density (20℃) g/cm3	1.10 min	1.20 min
pH(1% water  solution)	2.5-4.5	2.5-4.5

Usage:
PAA 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 used alone, 1-15mg/L is preferred.
Package and Storage:
200L plastic drum, IBC(1000L), customers' requirement. Storage for one year in shady room and dry place.
Synonyms:
PAA; Polyacrylic Acid; Acrylicresin; acrylicacidresin; acrylicacid polymers;   polyacrylateelastomers; acrysola;