Disodium citrate
Names
IUPAC name
Disodium hydrogen 2-hydroxypropane-1,2,3-tricarboxylate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.005.113
EC Number
  • 205-623-3
E number E331ii (antioxidants, ...)
RTECS number
  • GE7580000
UNII
  • 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
  • C(C(=O)[O-])C(CC(=O)[O-])(C(=O)O)O.[Na+].[Na+]
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)
NFPA 704 four-colored diamond
0
1
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, also known as disodium hydrogen citrate, Alkacitron, and sesquihydrate, is an acid salt of citric acid with the chemical formula Na2C6H6O7.[1]

Uses

Food

It is used as an antioxidant in food and to improve the effects of other antioxidants.[2] It is also used as an acidity regulator and sequestrant.[2] Typical products include gelatin, jam, sweets, ice cream, carbonated beverages, milk powder, wine, and processed cheeses. Disodium citrate can also be used as a thickening agent or stabilizer.[3]

Manufacturing

Disodium citrate can also be used as an ingredient in household products that remove stains.[4]

Health

Disodium citrate may be used in patients to alleviate discomfort from urinary-tract infections.[5][6]

References

  1. ↑ PubChem. "Disodium citrate". pubchem.ncbi.nlm.nih.gov. Retrieved 2022-08-30.
  2. 1 2 "Alkarate from Macleods: Disodium Hydrogen Citrate". drugsupdate.com.
  3. ↑ PubChem. "Disodium citrate". pubchem.ncbi.nlm.nih.gov. Retrieved 2022-08-30.
  4. ↑ PubChem. "Disodium citrate". pubchem.ncbi.nlm.nih.gov. Retrieved 2022-09-19.
  5. ↑ "OTC Treatment". Archived from the original on 2018-07-28. Retrieved 2016-04-19.
  6. ↑ "Disodium Hydrogen Citrate Syrup". labeling.pfizer.com. Retrieved 2022-09-26.
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