Dibutyl Phthalate
Structural Formula Vector Image
Title: Dibutyl Phthalate
CAS Registry Number: 84-74-2
CAS Name: 1,2-Benzenedicarboxylic acid dibutyl ester
Additional Names: n-butyl phthalate; phthalic acid dibutyl ester; DBP
Molecular Formula: C16H22O4
Molecular Weight: 278.34
Percent Composition: C 69.04%, H 7.97%, O 22.99%
Literature References: Prepn: Farrar, Wienkauff, Chem. Ind. (London) 1962, 2144. Manuf: Bruno, US 2628249 (1953 to Pittsburgh Coke & Chemical). Toxicity study: C. C. Smith, Arch. Ind. Hyg. Occup. Med. 7, 310 (1953). Review of toxicology and human exposure: Toxicological Profile for Di-n-butyl phthalate (PB2001-109104, 2001) 225 pp.
Properties: Oily liquid. bp 340°. d20 1.0459 and 1.0465, Kemppinen, Gokeen, J. Phys. Chem. 60, 126 (1956). nD20 1.4900. Flash pt, open cup: 340°F (171°C). Sol in about 2500 parts water; very sol in alcohol, ether, acetone, benzene.
Boiling point: bp 340°
Flash point: Flash pt, open cup: 340°F (171°C)
Index of refraction: nD20 1.4900
Density: d20 1.0459 and 1.0465, Kemppinen, Gokeen, J. Phys. Chem. 60, 126 (1956)
CAUTION: Potential symptoms of overexposure are irritation of eyes, upper respiratory system and stomach. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 94.
Use: Plasticizer; solvent for oil-soluble dyes, insecticides and other organics; antifoam agent; textile fiber lubricant; fragrance fixative; insect repellent.

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