Title: Ammonium Bimalate
CAS Registry Number: 5972-71-4
CAS Name: Hydroxybutanedioic acid monoammonium salt
Additional Names: l-malic acid monoammonium salt; ammonium acid malate
Molecular Formula: C4H9NO5
Molecular Weight: 151.12
Percent Composition: C 31.79%, H 6.00%, N 9.27%, O 52.94%
Line Formula: NH4OOCCH2CH(OH)COOH or HOOCCH2CH(OH)COONH4
Literature References: Prepn: Kendrick, Ber. 30, 1749 (1897); Holmberg, ibid. 61, 1885 (1928).
Properties: Orthorhombic disphenoidal crystals. mp 160-161°. d 1.15. Sol in 3 parts water; slightly sol in alcohol. [a]D18 -6.4° (c = 6).
Melting point: mp 160-161°
Optical Rotation: [a]D18 -6.4° (c = 6)
Density: d 1.15
Status: This monograph has been retired and is no longer subject to revision or update.