Sodium tartrate

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Sodium L-tartrate[1]
Sodium tartrate ball-and-stick.png
CAS number 868-18-8 YesY, (anhydrous)
6106-24-7 (dihydrate)
PubChem 13355
ChemSpider 12786 YesY
ATC code A06AD21
Jmol-3D images Image 1
Molecular formula C4H4Na2O6 (anhydrous)
C4H8Na2O8 (dihydrate)
Molar mass 194.051 g/mol (anhydrous)
230.082 g/mol (dihydrate)
Appearance white crystals
Density 1.545 g/cm3 (dihydrate)
Solubility in water soluble
Solubility insoluble in ethanol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
Infobox references

Sodium tartrate (Na2C4H4O6) is used as an emulsifier and a binding agent in food products such as jellies, margarine, and sausage casings. As a food additive, it is known by the E number E335.

Because its crystal structure captures a very precise amount of water, it is also a common primary standard for Karl Fischer titration, a common technique to assay water content.

See also[edit]


  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 3–502, ISBN 0-8493-0594-2 

External links[edit]