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. Specification: Appearance: colorless or light yellow transparent liquid Solid content : 30 % min Free monomer (CH2=CH-COOH): 0.5% max Density (20 cnetigrade): 1.15 g/cm3 min pH(1% solution): 6.0~8.0 Notes: Solid content 40%, 45% and 50% are also available Usage: 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 used alone, 2-15mg/L is preferred. When used as dispersant, the dosage should be determined by experiment. 25kg or 200kg in plastic barrel. Storage for ten months in room shady and dry place.