In lacks the anti- filthy medicinal preparation gentle etching reagentin the boiler aqueous system to be able to have massive scale and thecorrosion, but creates the thermal efficiency to reduce the wasteenergy, moreover also possibly can cause the steam to divulge, because scale seriously causes every year the accident surpasses the accidenttotal 20%; scale will form in the cooling system can reduce the flowchannel cross-sectional area, will increase the water cycleresistance, will hinder the normal heat change along with the scale unceasingly will add thick, will create equipment seriouscooling not good to bring a succession of evil consequence, willeffectively seek one kind effectively anti- to be filthy corrosion inhibitor becomes the urgent matter.

Polyacrylic Acid Sodium (PAAS) 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.

Polyacrylic Acid Sodium (PAAS) is used as scale inhibition and dispersant for circulating cool water system, papermaking, weave, dyeing, ceramic, painting, etc.