| ≥1 piece |
Sodium Acid Pyrophosphate, SAPP
Chemical formula Na2H2P2O7
Molecular weight: 221.95
CAS Number: 7758-16-9
Properties:
White powder or granular;Relative density 1.86g/cm3;Soluble in water and insoluble in ethanol; If its aqueous solution is heated together with diluted inorganic acid, it will be hydrolyzed into phosphoric acid; It is hydroscopic, and when absorbing humidity it will become into a product with hexa-hydrates; If it is heated at a temperature above 220, it will be decomposed into sodium meta phosphate.