Disodium citrate

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Disodium citrate
Disodium citrate.svg
IUPAC name
Disodium hydrogen 2-hydroxypropane-1,2,3-tricarboxylate
3D model (JSmol)
ECHA InfoCard 100.005.113
EC Number 205-623-3
RTECS number GE7580000
Molar mass 236.09 g·mol−1
Appearance white crystalline powder
Melting point 149 °C (300 °F; 422 K)
NFPA 704
Flammability code 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g., canola oilHealth code 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g., sodium chlorideReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
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][medical citation needed]


  1. ^ a b "Alkarate from Macleods: Disodium Hydrogen Citrate". drugsupdate.com.
  2. ^ "OTC Treatment".