CAS Registry Number: [68-04-2]
Chemical Formula: C6H5O7Na3
E-Number: E331
General Information
Trisodium citrate is a tribasic salt of citric acid. It is produced by complete neutralisation of citric acid with high purity sodium hydroxide or carbonate and subsequent crystallisation and dehydration.
The common hydrate form, trisodium citrate dihydrate, is widely used in foods, beverages and various technical applications mainly as buffering, sequestering or emulsifying agent, whereas the anhydrous form finds its uses in particular applications such as water sensitive dry blends and instant beverages, surfactants, fragrances as well as in tablets and OTC products.
Jungbunzlauer trisodium citrate anhydrous is manufactured from trisodium citrate dihydrate. Water molecules of the dihydrate crystals are removed by a patented process without destroying the original crystal matrix. The resulting crystals have a porous matrix that can be used as a carrier for inorganic and/or organic substances, especially after being impregnated with liquids. Further, due to the absence of water, the product is not prone to caking. Trisodium citrate anhydrous is also used in applications where excess water is not desired.
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