Nomenclature
CAS number: 3164-34-9
2,3-Dihydroxybutanedioic acid calcium salt.
C
4H
4CaO
6; mol wt 188.15.
C 25.53%, H 2.14%, Ca 21.30%, O 51.02%.
CaC
4H
4O
6.
Description and references
A byproduct of the wine industry. Prepn from
wine dregs: Dabul, US 3114770 (1963 to Orandi & Massera). See also the processes mentioned under l-tartaric
acid.
Derivative
Tetrahydrate.
Properties
Powder. Slightly sol in water (from about 0.04%
at 10° to about 0.2% at 85°) or in alcohol; sol in dil HCl or HNO3.Use
As preservative for fruits, vegetables, seafoods;
in deodorization of fish; as antacid.