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Sodium citrate is the sodium salt of citric acid with the chemical formula of Na3C6H5O7.
Sodium citrate possesses a saline, mildly tart, flavor.
For this reason, citrate of certain Alkaline and Alkaline Earth metals (e.g. sodium and calcium citrate) are commonly known as sour salt (occasionally citric acid is erroneously termed sour salt).
Sodium citrate is chiefly used as a food additive, usually for flavor or as a preservative.
Appearance : White crystalline powder. Freely soluble in water.
Sodium citrate is very soluble in boiling water, freely soluble in water and practically insoluble in alcohol.