Names | |
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IUPAC name
Disodium 3-carboxy-3-hydroxypentanedioate[1]
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.005.113 |
EC Number |
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E number | E331ii (antioxidants, ...) |
PubChem CID
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RTECS number |
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C6H6Na2O7 | |
Molar mass | 236.087 g·mol−1 |
Appearance | white crystalline powder |
Melting point | 149 °C (300 °F; 422 K) |
Hazards | |
NFPA 704 (fire 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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Disodium citrate, also known as disodium hydrogen citrate, (Neo-Alkacitron) and sesquihydrate, is an acid salt of citric acid with the chemical formula Na2C6H6O7.[2] It is used as an antioxidant in food and to improve the effects of other antioxidants. It is also used as an acidity regulator and sequestrant. Typical products include gelatin, jam, sweets, ice cream, carbonated beverages, milk powder, wine, and processed cheeses.