1. Chemical name: Disodium Dihydrogen Pyrophosphate, Sodium Acid Pyrophosphate
2. M. F.: Na2H2P2O7
3. M. W.: 221.94
4. Description: White, crystalline powder or granule, soluble in water, the pH of a 1: 100 aqueous solution is about 4.
5. Quality standard: ( FCC-V, HG2928-1999)