Sodium Acid Pyrophosphate(Food grade) (CF-SAP700) CAS No.: 7758-16-9 EINECS No.: 231-835-0 Model No.: CF-SAP700(Food grade) Molecular formula : Na2H2P2O7 Molecular weight : 221.95 Standards : HG2928-1999 Property : White power granular or powder, soluble in water, acidic property appeared in aqueous solution. Use: It acts as a buffer, leaven, modifier, emulsifier, nutrient and canning preservative in foods.. Packing:25kg woven bag with plastic liner.