I. Chemical Name: Potassium pyrophosphate . Molecular formula: K4P2O7 . Molecular Weight: 330.35 IV. Properties: white crystal or crystalline powder or granules, hygroscopic, Melting point 1109, ph of 1% Aq. solution is 10.5. V. Quality Standard: Index name GB 25562-2010 FCC-V Assay % 95.0 95.0 Water insoluble % 0.10 0.10 Heavy metals (as pb) % 0.001 0.001 As % 0.0003 0.0003 Fluoride (F)% 0.001 0.001 Pb % 0.0002 0.0002 pH(10g/LSolution) 10.5±0.5 VI. Packing: PE bag lined composite plastic woven bag, Net wt 25KG.
