Nomenclature
CAS number: 3095-65-6
(2
R,3
R)-2,3-Dihydroxybutanedioic acid
ammonium salt (1:1);
l-tartaric acid monoammonium salt; ammonium acid tartrate; ammonium hydrogen tartrate.
C
4H
9NO
6; mol wt 167.12.
C 28.75%, H 5.43%, N 8.38%, O 57.44%.
NH
4OOCCH(OH)CH(OH)COOH.
Description and references
Prepd from ammonium tartrate and tartaric acid:
Dulk, Ann. 2, 39 (1832).
Properties
Odorless crystals. d 1.68. Sol in 45.6 parts water at 15°; freely
sol in hot water, alkalies, alkali carbonates. Practically insol
in alc. [α]D20 +26.0° (c = 1.5 in water): Long, J. Am. Chem. Soc. 23, 813 (1901).