8684. Sodium Tartrate

Nomenclature

CAS number: 868-18-8
(2R, 3R)-2,3-Dihydroxybutanedioic acid sodium salt (1:2).
C4H4Na2O6; mol wt 194.05.
C 24.76%, H 2.08%, Na 23.69%, O 49.47%.
Na2C4H4O6.

Derivative

Dihydrate.

Nomenclature

CAS number: 6106-24-7
C4H4Na2O6.2H2O; mol wt 230.08.
C 20.88%, H 3.50%, Na 19.98%, O 55.63%.

Properties

White crystals or granules. Loses its water at about 120°. d 1.82. Sol in about 3 parts cold water, 1.5 parts boiling water; insol in alcohol. The aq soln is slightly alkaline to litmus, pH 7 to 9.

Use

Dihydrate as standard for standardizing Karl Fischer reagent (determination of water).

Therapeutic Category

Cathartic.

Keywords

Laxative/Cathartic