Abstract
Abstract
The chemicals in this chapter are C
2
to C
3
aliphatic hydrocarbons containing, chlorine, bromine, or iodine. All are volatile liquids (flammable and nonflammable) at ambient temperatures, except for ethyl chloride (gas) and hexachloroethane (solid). Most, if not all, of the chemicals in this chapter are produced in closed‐system facilities, and the majority are used, primarily or exclusively, as intermediates or feedstocks to produce other chemicals. 1,1,1‐Trichloroethane is an ozone‐depleting substance and is tightly regulated under the Montreal Protocol on Substances that Deplete the Ozone Layer. Three chemicals were not included in this edition: 1,1,2,2‐tetrabromoethane, 1,2‐dibromo‐3‐chloropropane (DBCP), and ethyl iodide. DBCP has been effectively banned as a soil fumigant due to its well‐characterized toxicity, particularly on male reproduction. For the other two chemicals, the toxicity information and use are limited.
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