Sodium citrate or Trisodium citrate Dihydrate (Food Grade) is the trisodium salt of citric acid. This is a crystalline white powder that is slightly deliquescent in moist air, freely soluble in water, and practically insoluble in alcohol. Trisodium citrate dihydrate is a non-toxic, neutral salt with low reactivity.
The common hydrate form, trisodium citrate dihydrate, is widely used in foods, beverages and various technical applications mainly as buffering, sequestering or emulsifying agent. Used as a food additive and flavouring agent, this product possesses a saline, mildly tart flavour that can help in water sensitive formulations like instant drinks as well as tablets and powders in pharmaceuticals and detergents.