SPECTRUM

Chemical Fact Sheet

Chemical Abstract Number (CAS #) 76062
CASRN 76-06-2
SynonymsChloropicrin
Methane, trichloronitro-
Nimax
Analytical Method EPA Method 618
Molecular FormulaCCl3NO2

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

Use IN SYNTHESIS, ESP IN MFR OF METHYL VIOLET AS RODENTICIDE; HAS BEEN USED AS CHEMICAL WARFARE AGENT TEAR GAS FOR INSECT & RODENT CONTROL IN GRAIN ELEVATORS, BINS, & OTHER GRAIN STORAGE PLACES, & APPLIED TO SOIL AS PRE-PLANT SOIL FUMIGANT FOR CONTROL OF FUNGUS DISEASES SUCH AS VERTICILLIUM WILT, NEMATODES, INSECTS, & WEED SEEDS. NOT APPROVED FOR FUMIGATION OF BEANS, COWPEAS, PEAS, & NUTS. FOR BEST FUMIGANT ACTION SOIL SHOULD BE MOIST FOR APPLICATION & COVERED WITH POLYETHYLENE SHEETING FOR @ LEAST 2 DAYS FOLLOWING APPLICATION. SOIL HAS TO BE AERATED THOROUGHLY BEFORE PLANTING TO REMOVE INJURIOUS CONCN.AERATION TAKES 2 WK OR LONGER DEPENDING ON SOIL TYPE & SOIL TEMP. IT MAY BE INJECTED IN SOIL IN COMBINATION WITH XYLENE, CARBON TETRACHLORIDE, OR ETHYLENE DICHLORIDE TO HELP DISTRIBUTE GAS. IT IS SOMETIMES ADDED IN SMALL AMT TO OTHER COMPARATIVELY ODORLESS FUMIGANTS TO ACT AS WARNING AGENT. IN FIELD BEANS (PHASEOLUS VULGARIS), FUMIGATION WITH 400 KG/HA CHLOROPICRIN SIGNIFICANTLY INCREASED SHOOT WEIGHT, ROOT WEIGHT, AND TOTAL NITROGEN UPTAKE THROUGHOUT THE SEASON AND DECREASED THE INCIDENCE OF ROOT ROT. FUMIGANT FOR NON-DECIDUOUS FRUITS, TOMATOES, & TOBACCO FUMIGANT FOR POTATOES & OTHER FIELD CROPS-EG, COTTON FUMIGANT FOR PEANUTS & SUGAR BEETS FUMIGANT FOR DECIDUOUS FRUITS & NUTS & OTHER VEGETABLES FUMIGANT FOR FLORAL CROPS, LAWNS, TURF, & ORNAMENTALS FUMIGANT FOR COMMODITIES & SPACE FUMIGANT FOR STRUCTURAL PEST CONTROL FUMIGANT FOR OTHER USES-EG, GOVERNMENT & INDUST USES CHEMICAL WARFARE AGENT (FORMER USE)
Consumption Patterns FUMIGANT FOR NON-DECIDUOUS FRUITS, 44%; TOMATOES, 14%; TOBACCO, 6%; POTATOES, 3%; OTHER FIELD CROPS-EG, COTTON, PEANUTS, SUGAR BEETS, & DECIDUOUS FRUITS & NUTS, 8%; OTHER VEGETABLES, 5%; FLORAL CROPS, LAWNS, TURF, & ORNAMENTALS, 11%; COMMODITIES, SPACE, & STRUCTURAL PEST CONTROL, 3%; MISCELLANEOUS SOIL FUMIGATION, 5% (1982)
Apparent Color SLIGHTLY OILY LIQUID ; COLORLESS ; Faint yellow liquid.
Odor INTENSE ODOR
Boiling Point 112 deg C
Melting Point -69.2 deg C
Molecular Weight 164.39
Density 1.6558 @ 20 DEG C/4 DEG C
Odor Threshold Concentration Threshold odor concn: 1.1 ppm Faint odor at 0.0073 mg/l
Environmental Impact Chloropicrin may be released to the atmosphere resulting from its use as a fumigant, fungicide, insecticide and tear/war gas. In the atmosphere it will be lost by photodegradation (half-life 20 days) forming phosgene and nitrosyl chloride. It will also be removed by rain. If spilled on earth, it will volatilize and leach into the groundwater where its fate is unknown. In water it will volatilize (half-life 7.4 hrs. from a typical river) and photodegrade (half-life 3 days). It would not be expected to adsorb to sediment or bioconcentrate in fish. Although its use as a fumigant, fungicide, insecticide and tear/war gas has a high potential for exposure, no occupational or ambient air concentration levels could be located. Chloropicrin is a contaminant in drinking water of several U.S. cities which may result from direct contamination of the water supply or from chlorination of other contaminants.
Environmental Fate TERRESTRIAL FATE: If spilled on soil, chloropicrin will both rapidly volatilize and leach into the groundwater where its fate is unknown. AQUATIC FATE: If released into water, chloropicrin will readily volatilize (half-life 7.4 hr. from a typical river). It will photodegrade in the surface layers of water (half-life 3 days). Chloropicrin would not be expected to adsorb to sediment. ATMOSPHERIC FATE: If released to the atmosphere, chloropicrin will photodegrade with a half-life of 20 days. Being relatively soluble in water it should be subject to wash-out by rain.
Drinking Water Impact DRINKING WATER: Finished drinking water survey of 5 cities with varied sources of raw water and types of contaminants: Cincinnati 3 ppb, Philadelphia 2 ppb, Miami .4ppb, Seattle and Ottuma, IA 0 ppb . Choropicrin is readily formed from nitromethane during chlorination . GROUND WATER: In wells 35 and 65 m from site where chloropicrin was buried, 2.1 and .001 ppm respectively . OTHER: Swimming pool waters. 90% of 74 swimming pools in the Bonn area, Germany, .4ppm avg. .

DISCLAIMER - Please Read

Florida-Spectrum List of Services
Florida-Spectrum Homepage