This information profile on hexachlorocyclopentadiene (77474) lists its chemical structure, Chemical Abstracts Service number, Registry of Toxic Effects of Chemical Substances number, production figures and economic trends in production, uses, number of companies producing and using hexachlorocyclopentadiene, and the biological effects of exposure. Hexachlorocyclopentadiene is a potent irritant. Inhalation causes lacrimation, salivation, and gasping respiration. Long term inhalation causes degenerative changes of the brain, heart, liver, adrenals, and kidneys as well as severe lung damage. Acute and chronic effects are considered. In humans it has been noted that inhalation is irritating to the respiratory tract and causes lacrimation. The threshold limit value has been set at thermal decomposition product of mirex (2385855).
Information Profiles on Potential Occupational Hazards, NIOSH Contract No. 210-77-0120, October 1977