Title: Butyl Cellosolve® (Union Carbide)
CAS Registry Number: 111-76-2
CAS Name: 2-Butoxyethanol
Additional Names: ethylene glycol monobutyl ether
Molecular Formula: C6H14O2
Molecular Weight: 118.17
Percent Composition: C 60.98%, H 11.94%, O 27.08%
Line Formula: HOCH2CH2OC4H9
Literature References: Prepn: L. H. Cretcher, W. H. Pittenger, J. Am. Chem. Soc. 46, 1503 (1924); W. W. Carlson, US 2448767 (1948 to Mellon Inst. Ind. Res.); R. Riemschneider, P. Gross, Monatsh. Chem. 90, 783 (1959). Toxicity: H. F. Smyth et al., J. Ind. Hyg. Toxicol. 23, 259 (1941); C. P. Carpenter et al., Arch. Ind. Health 14, 114 (1956). Series of articles on toxicology: Environ. Health Perspect. 57, 1-275 (1984). Review of toxicology and human exposure: Toxicological Profile for 2-Butoxyethanol and 2-Butoxyethanol Acetate (PB99-102527, 1998) 404 pp.
Properties: Liquid, bp 171-172°. d420 0.9012, d2020 0.9019. nD20 1.4196. Flash pt, closed cup: 141°F (60°C). Sol in water, mineral oil, most organic solvents. LD50 orally in rats: 1.48 g/kg (Smyth).
Boiling point: bp 171-172°
Flash point: Flash pt, closed cup: 141°F (60°C)
Index of refraction: nD20 1.4196
Density: d420 0.9012; d2020 0.9019
Toxicity data: LD50 orally in rats: 1.48 g/kg (Smyth)
CAUTION: Potential symptoms of overexposure are hemolysis, hemoglobinuria; CNS depression, headache; vomiting. Direct contact may cause irritation of skin, eyes, nose and throat. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 36. See also Patty's Industrial Hygiene and Toxicology vol. 2D, G. D. Clayton, F. E. Clayton, Eds. (Wiley-Interscience, New York, 4th ed., 1994) pp 2765, 2795-2804.
Use: Solvent for nitrocellulose, resins, grease, oil, albumin; dry cleaning. |