Disodium citrate

Disodium citrate
Names
	IUPAC name Disodium hydrogen 2-hydroxypropane-1,2,3-tricarboxylate
Identifiers
CAS Number	144-33-2 ;
3D model (JSmol)	Interactive image;
ChemSpider	8606 ;
ECHA InfoCard	100.005.113
EC Number	205-623-3
PubChem CID	8950;
RTECS number	GE7580000
	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-2 Key: CEYULKASIQJZGP-UHFFFAOYSA-L;
	SMILES C(C(=O)[O-])C(CC(=O)[O-])(C(=O)O)O.[Na+].[Na+];
Properties
Chemical formula	C6H6Na2O7
Molar mass	236.09 g·mol−1
Appearance	white crystalline powder
Melting point	149 °C (300 °F; 422 K)
Hazards
NFPA 704	1 0 0
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Disodium citrate, more properly, disodium hydrogen citrate, is an acid salt of citric acid with the chemical formula Na₂C₆H₆O₇. It is used as an antioxidant in food and 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.

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

References

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