SPECTRUM

Chemical Fact Sheet

Chemical Abstract Number (CAS #) 608731
CASRN 608-73-1
SynonymsBHC
Hexachlorocyclohexane
HCH
Analytical Method EPA Method 8120
Molecular FormulaC6H6Cl6

Link to the National Library of Medicine's Hazardous Substances
Database for more details on this compound.

Use INSECTICIDE AGROCIDE 6G, LINDOC 6G CONTROL OF LEAFHOPPERS, STEM BORERS, ETC, IN LOWLAND RICE. KOTOL LIQ SEED TREATMENT FOR REDUCTION OF WIREWORM DAMAGE IN WINTER & SPRING SOWN CEREALS. LINDOCOL FOR CONTROL OF PESTS OF CEREALS, SUGAR BEETS & OILSEED RAPE. FORMER USE
Consumption Patterns World consumption of BHC (in metric tons) was: 42,000 in 1970; 28,000 in 1971; 25,000 in 1972; 30,000 in 1973; 25,000 in 1974.
Apparent Color WHITE OR YELLOWISH POWDER OR FLAKES; Brown-to-white amorphous powder
Odor PERSISTENT MUSTY ODOR; A musty odor reminiscent of the new mown hay odor of phosgene.
Melting Point 65 deg C
Molecular Weight 290.80
Density 1.87
Sensitivity Data Vapors may irritate eyes, nose, throat.
Environmental Fate AQUATIC FATE: BHC becomes partially absorbed & adsorbed to river bottom sediments.
Drinking Water Impact In a survey of finished US drinking water, the highest reported level of HCH was 100 ng/l (USA EPA, 1975). In Japan, BHC accounted for about 90% of all organochlorine pesticides used from 1968 to 1969. This resulted in elevated concn of BHC in waters. In Tokyo concn of alpha-BHC in rain water ranged from 45 to 930 ppt, & gamma-BHC from 29 to 398 ppt. In snow, concn were only 12-50% of concn found in rainwater. This difference is related to concn in atmosphere, not to rain or snow, as such. It was concluded that rather large amt of BHC sprayed on farmlands or crops falls rather rapidly to the ground, particularly in rainfall, while remaining portions remain in atmosphere for prolonged periods. It was estimated that during 1968-1969, BHC dropping to ground with rainfall amounted to 170 tons/yr; this quantity was only 0.36% of total quantity used per yr in Japan.

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