Title: 3,5-Dinitrobenzoic Acid
CAS Registry Number: 99-34-3
Molecular Formula: C7H4N2O6
Molecular Weight: 212.12
Percent Composition: C 39.64%, H 1.90%, N 13.21%, O 45.26%
Literature References: Prepd by nitration of benzoic acid with fuming nitric acid: Brewster et al., Org. Synth. 22, 48 (1942); Saunders et al., Biochem. J. 36, 368 (1942). Purification: Jensen et al., Chem. Weekbl. 43, 731 (1947), C.A. 42, 2307d (1948).
Properties: Monoclinic prismatic crystals from alc. mp 205-207°, (mp 206.5-207.2° purified). One gram dissolves in 53 parts of boiling water; much less sol in cold water. Very sol in alc and glacial acetic acid; sparingly sol in ether, carbon disulfide and benzene. Sublimes.
Melting point: mp 205-207°, (mp 206.5-207.2° purified)
Use: Identification of alcohols, alkyl halides; chromatographic determination of the essential oil constituents. |