Poly acrylic acid (PAA) water treatment CAS 9003-01-4 Circulating cool water system1

PAA (polyacrylic acid) is a colorless or pale yellow liquid. It can form stable compounds with metal ions, calcium, magnesium, etc., and has excellent decomposition effects on calcium carbonate and calcium hydroxide in water. The molecular weight of this product used for water treatment is generally between 2000-5000, and it is miscible with water, soluble in ethanol, isopropanol, etc. It is weakly acidic with a pKa of 4.75. Easy to decompose above 300 ℃.

PAA cas:9003-01-4 is an efficient scale inhibitor that can effectively prevent the crystallization and deposition of metal ions such as calcium and magnesium in water. These metal ions are prone to form scale in water, which affects the heat exchange efficiency of equipment and the flow of water. PAA forms stable complexes with these metal ions through chelation, thereby preventing them from combining with anions such as carbonate and sulfate ions to form precipitates. This characteristic has made PAA widely used in cooling water systems, boiler water systems, and pre-treatment before reverse osmosis membranes.