Linear Formula: HOC(COONa)(CH2COONa)2 · 2H2O, Molecular Weight: 294.10, ≥99%, FG, Synonym: Citric acid trisodium salt dihydrate, Sodium citrate tribasic dihydrate, Trisodium citrate dihydrate. Sodium citrate dihydrate is used as a buffer, pH controlling agent, emulsifier, sequestrant and complexing agent in food industry.