| Chemical Abstract Number (CAS #) |
608731
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| Synonyms | BHC |
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Hexachlorocyclohexane | HCH |
| Analytical Method |
EPA Method 8120A |
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| Molecular Formula | C6H6Cl6 |
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| 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
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| 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.
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| Apparent Color | WHITE OR YELLOWISH POWDER OR FLAKES; Brown-to-white amorphous
powder
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| Odor | PERSISTENT MUSTY ODOR; A musty odor reminiscent of the new mown hay odor
of phosgene.
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| Melting Point | 65 deg C
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| Molecular Weight | 290.80
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| Density | 1.87
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| Sensitivity Data | Vapors may irritate eyes, nose, throat.
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| Environmental Fate | AQUATIC FATE: BHC becomes partially absorbed & adsorbed to river bottom
sediments.
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| 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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