General
- The
chemical compound trichloroethylene is a chlorinated hydrocarbon.
- It is a
clear non-flammable liquid with a sweet smell.
- Its IUPAC
name is trichloroethene.
- In
industry, it is informally referred to by the abbreviations TCE, Trike and
tri, and it is sold under a variety of trade names.
Process
- The
1,1,2,2-tetrachloroethane is then de hydro chlorinated to give
trichloroethylene.
- This can
either be accomplished with an aqueous solution of calcium hydroxide.
- Most
trichloroethylene is produced from ethylene.
Report
- The
National Toxicology Program (NTP) determined that trichloroethylene is
“reasonably anticipated to be a human carcinogen.
- ” The
International Agency for Research on Cancer (IARC) has determined that
trichloroethylene is “probably carcinogenic to humans.”
Application
- Its major
use was to extract vegetable oils from plant materials such as soy,
coconut, and palm.
- Other uses
in the food industry included coffee decaffeination and the preparation of
flavoring extracts from hops and spices.
- It was also
used as a dry cleaning solvent.
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