Tetrasodium pyrophosphate CAS NO.7722-88-5

Molecular formula: Na4P2O7/Na4P2O7.10H2O Molecular weight: 265.90/446.06 CAS No .: 7722-88-5 / 13472-36-1 H.S CODE: 2835.3900 30 Use: anhydrous sodium pyrophosphate is used as chelating…

Molecular formula: Na4P2O7/Na4P2O7.10H2O Molecular weight: 265.90/446.06 CAS No .: 7722-88-5 / 13472-36-1 H.S CODE: 2835.3900 30 Use: anhydrous sodium pyrophosphate is used as chelating agent in electroplating, rust and scale remover, wool degreaser, dyeing and scouring auxiliary, detergent ingredient, toothpaste ingredient; in manufacture of other pyroPhosphate salts. Sodium pyrophosphate decahydrate is used as water softener, scale remover, sequestrant, dispersing agent, dyeing and scouring auxiliary, etc. Product name Sodium Pyrophosphate Grade Technical Grade Test method GB GB Type Anhydrous Decahydrate Assay 96.5%min 98.0%min P2O5 51.50%min - Heavy metal 0.001%max 0.001%max pH 9.9-10.70 9.9-1.07 Whiteness 90 min 90 min Water-insoluble substances 0.02%max 0.10%max Loss on ignition 0.50% 38-42% Packaging: 50lb plastic woven bag or paper bag, net weight 10Kg or 25Kg; 2,000lb plastic woven bag, net weight 1,000Kg.