Malonic Acid
Title: Malonic Acid
CAS Registry Number: 141-82-2
CAS Name: Propanedioic acid
Additional Names: methanedicarboxylic acid
Molecular Formula: C3H4O4
Molecular Weight: 104.06
Percent Composition: C 34.63%, H 3.87%, O 61.50%
Line Formula: HOOCCH2COOH
Literature References: Prepd from malic acid: Dessaignes, Ann. 107, 251 (1858). Made by the interaction of monochloroacetic acid and NaCN followed by hydrolysis of the resulting cyanoacetic acid: Weiner, Org. Synth. coll. vol. II, 376 (1943). Prepn from diethyl malonate: Britton, Monroe, US 2373011 (1945 to Dow); from ligneous wastes: Grangaard, US 2928868 (1960 to Kimberly-Clark); from sodium acetate: Normant, Angelo, Bull. Soc. Chim. Fr. 1962, 810. Review: D. W. Hughes in Kirk-Othmer Encyclopedia of Chemical Technology vol. 14 (Wiley-Interscience, New York, 3rd ed., 1981) pp 794-810.
Properties: Small crystals, mp ~135° with decompn; sublimes in vacuo. d 1.63. One gram dissolves in 0.65 ml water, about 2 ml alcohol, 1.1 ml methanol, 3 ml propyl alcohol, 13 ml ether, 7 ml pyridine.
Melting point: mp ~135° with decompn
Density: d 1.63
 
Derivative Type: Diethyl Ester see Ethyl Malonate
 
CAUTION: Strong irritant.
Use: In manuf of barbiturates.

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