Title: Pelargonic Acid
CAS Registry Number: 112-05-0
CAS Name: Nonanoic acid
Synonyms: nonylic acid; nonoic acid
Molecular Formula: C9H18O2
Molecular Weight: 158.24
Percent Composition: C 68.31%, H 11.47%, O 20.22%
Line Formula: CH3(CH2)7COOH
Literature References: Occurs as an ester in oil of pelargonium: Redtenbacher,
Ann. 59, 41, 52, 54 (1846). Prepn from unsaturated hydrocarbons by the oxo process: Hill,
US 2815355 (1957 to Standard Oil of Indiana); from tall oil unsaturated fatty acids: Maggiolo,
US 2865937 (1958 to Welsbach); by oxidation of oleic acid: Mackenzie, Morgan,
US 2820046 (1958 to Celanese); from rice bran oil fatty acid: Mihara
et al., US 3060211 (1962 to Toya Koatsu Ind.). Purification: Port, Riser,
US 2890230 (1959 to U.S.D.A.). Toxicity study: L. Or?, A. Wretlind,
Acta Pharmacol. Toxicol. 18, 141 (1961).
Properties: Colorless, oily liquid at ordinary temp; crystallizes when cooled; characteristic odor. d420 0.907. mp 12.5°. bp756 252-253°; bp14 143-145°; bp6.3 132-133°.
nD20 1.4330;
nD40 1.4245. Practically insol in water. Sol in alcohol, chloroform, ether. LD50 i.v. in mice: 224±4.6 mg/kg (Or?, Wretlind).
Melting point: mp 12.5°
Boiling point: bp756 252-253°; bp14 143-145°; bp6.3 132-133°
Index of refraction: nD20 1.4330;
nD40 1.4245
Density: d420 0.907
Toxicity data: LD50 i.v. in mice: 224±4.6 mg/kg (Or?, Wretlind)
CAUTION: Strong irritant.
Use: In the production of hydrotropic salts (hydrotropic salts form aq solns which dissolve sparingly sol substances to a greater extent than water); in the manuf of lacquers, plastics.
