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Sodium citrate (Trisodium citrate CAS 68-04-2, Trisodium citrate dihydrate CAS 6132-04-3) is colorless crystals or white crystalline powder. Taste salty, and have cool and refreshing feeling.Soluble in water and glycerin, hardly soluble in alcohol and other organic solvents. Deliquescence, weathering resistance.In the hot air above 150℃ water of crystallization and decomposition.

Specification (BP98 USP30 E331)

Description                                 Crystalline white powder or colourless crystals
Content                                      99.0-101.0%
Sulphate                                    ≤0.015%
Heavy metals(As Pb)                   ≤0.001%
Oxalate(As H2C2O4)                   ≤0.03%
Chloride                                     ≤0.005%
Loss on drying                            11.0-13.0%
pH value(5% aqueous solution)    7.5-9
Arsenic(As)                                ≤1ppm
Lead(Pb)                                    ≤1ppm
* Please refer to specific Certificate of Analysis for details.

Application

Food

Sodium citrate is chiefly used as a food additive, usually for flavor or as a preservative. Sodium citrate is employed as a flavoring agent in certain varieties of club soda. 

Buffer

As a conjugate base of a weak acid, citrate can perform as a buffering agent or acidity regulator, resisting changes in pH. Sodium citrate is used to control acidity in some substances, such as gelatin desserts. 

Medical use

Sodium citrate can be used in blood collection tubes and for the preservation of blood in blood banks. The citrate ion chelates calcium ions in the blood by forming calcium citrate complexes, disrupting the blood clotting mechanism. 

Boiler descaling

25kg/bag; 25,000kg/ 20"FCL without pallet ,22,000kg/ 20"FCL with pallet