Nomenclature
CAS number: 74-96-4
Bromoethane; monobromoethane; bromic ether; hydrobromic ether.
C
2H
5Br; mol wt 108.97.
C 22.04%, H 4.62%, Br 73.33%.
CH
3CH
2Br.
Description and references
Made by distilling from a mixture of HBr, ethyl
alcohol and H2SO4: Kamm, Marvel, Org. Synth. coll. vol. I, 29 (1941).
By phosphorus and bromine method: Goshorn et al., ibid. 36. Absorption spectrum: Hantzsch, Ber. 58, 619 (1925). Physical properties:
Mumford, Phillips, J. Chem. Soc. 1950, 75. Toxicity data: E. H. Vernot et al., Toxicol. Appl. Pharmacol. 42, 417 (1977).
Properties
Colorless, volatile liq; ethereal odor; burning
taste; becomes yellowish on exposure to air and light. Vapor harmful.
d420 1.4612; d425 1.4515. bp 38.2°. mp -119°. nD20 1.4242. Poisonous. Soly in water (g/100 g) at 0°: 1.067; 10°: 0.965; 20°: 0.914;
30°: 0.896; miscible with alcohol, ether, chloroform and with other
organic solvents. Explosive limits (% by vol in air), lower 6.75,
upper 11.25. Autoignition temp 952°F (511°C). LC50 rats, mice (ppm): 27000, 16200 (Vernot).Caution
Potential symptoms of overexposure
are irritation of eyes, respiratory system and skin; CNS depression;
pulmonary edema; liver and kidney disease; cardiac arrhythmias; cardiac
arrest. See NIOSH Pocket Guide
to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 134.Use
Ethylating agent in organic synthesis; as refrigerant.
Formerly used as a topical and inhalation anesthetic.