Disodium citrate

Disodium citrate

Names
IUPAC name Disodium hydrogen 2-hydroxypropane-1,2,3-tricarboxylate
Identifiers
CAS Registry Number	144-33-2 Y
ChemSpider	10701794 Y
InChI InChI=1S/C6H8O7.2Na/c7-3(8)1-6(13,5(11)12)2-4(9)10;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;/q;2*+1/p-3 Y Key: CEYULKASIQJZGP-UHFFFAOYSA-K Y InChI=1/C6H8O7.2Na/c7-3(8)1-6(13,5(11)12)2-4(9)10;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;/q;2*+1/p-3 Key: CEYULKASIQJZGP-DFZHHIFOAJ
Jmol-3D images	Image
SMILES [Na+].[Na+].O=C([O-])CC(O)(CC(=O)[O-])C([O-])=O
Properties
Molecular formula	C6H6Na2O7
Molar mass	236.09 g·mol−1
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Disodium citrate, or disodium hydrogen citrate, is a sodium acid salt of citric acid with the chemical formula Na₂HC₆H₅O₇, or Na₂H(C₃H₅O(COO)₃). It is one of several forms of sodium citrate.

Uses

Food additive

Disodium citrate is used as an antioxidant in food as well as to improve the effects of other antioxidants.^[1] It is also used as an acidity regulator and sequestrant.^[1]

Typical products include gelatin, jam, sweets, ice cream, carbonated beverages, milk powder, wine, and processed cheeses.

Medical use

Disodium citrate may be used in patients to alleviate discomfort from urinary tract infections.^[2]

References