Sodium tartrate

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Sodium L-tartrate[1]
Sodium tartrate ball-and-stick.png
IUPAC name
disodium (2R,3R)-2,3-dihydroxybutanedioate
Other names
Sal tartar; Disodium tartrate; Bisodium tartrate; Sodium L-(+)-tartrate; E335
868-18-8 (anhydrous) YesY
6106-24-7 (dihydrate) N
ATC code A06AD21
ChemSpider 12786 YesY
Jmol interactive 3D Image
PubChem 13355
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 insoluble in ethanol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YesYN ?)
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]