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An oily colorless liquid, CCl3NO2, that causes skin, lung, and mucous membrane irritation and is used in tear gas and in dyestuffs, disinfectants, insecticides, and soil fumigants. Also called nitrochloroform.


(ˌklɔːrəʊˈpɪkrɪn) or


(Elements & Compounds) a colourless insoluble toxic lachrymatory liquid used as a pesticide and a tear gas; nitrotrichloromethane. Formula: CCl3NO2
[C20: from chloro- + picro- + -in]


(ˌklɔr əˈpɪk rɪn, ˌkloʊr-)

also chlorpicrin

a poisonous liquid, CCl3NO2, used as an insecticide and fungicide and in chemical warfare.
[1885–90; chloro-2 + picr(ic acid) + -in1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.chloropicrin - a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
References in periodicals archive ?
The general practice in the Pacific Northwest has been to fumigate in fall with methyl bromide plus chloropicrin (67:33 at 350 pounds per acre), crop for 2 years and finish with a year of bare fallow (in which fields are not planted and kept weed free) before repeating the cycle (Weiland et al.
To control soilborne diseases and weeds, California strawberry fields have long been fumigated with methyl bromide (MB) plus chloropicrin (Pic).
Finally, a recent San Francisco Superior Court decision requiring DPR to adopt regulations on field fumigation use for methyl bromide and chloropicrin will also be factored into the rulemaking process.
2005) and 1,3-D or chloropicrin in the field (Gao and Trout 2007; Yates et al.
It is a colorless, odorless gas that is normally mixed with another chemical warning agent, chloropicrin, which has a very noticeable odor and irritant properties.
For all three trials, Telone C35 (a mixture of 1,3-D 61% and chloropicrin 35%, weight per weight [w/w]) was shank applied at an 18-inch depth with a 20-inch shank spacing using a commercial Telone shank applicator.
The fumigants included chloropicrin, metam sodium, metam potassium, dimethyldisulfide, and 1,3-dichloropropene (sold as Telone).
Ad ag accts: IMMVAC (Endovac Bovi-Dairy, Endovac Bovi-Beef, Endovac Porci, Endovac Equi & Endoserum, Septi-serum), 2007; Kubota Tractor Corporation (ag/specialty tractors, construction equipment) (projects), 1999; Arysta LifeScience Canada (Maestro, Elevate, Orthene, Monitor, Decree), 2003; Arysta LifeScience NA (Captan, Elevate, Everest, Chloropicrin, Midas, corporate), 2000; Diamond Pet Foods (Diamond, Diamond Naturals, Chicken Soup for the Pet Lovers Soul, NutraNuggets, Taste of the Wild), 2005
When the Germans switched to phosgene, chloropicrin and yperite, or `mustard' gas, "the West Upton man and his assistants attacked the problem with renewed energy, working day and night.
Some of the chemicals such as DDT and chloropicrin are no longer registered for use in Australia; however, data have been included in this review as their use continues in many countries.
1,3-dichloropropene, chloropicrin (trichloronitro-methane) and ethylene dibromide).
In addition, there are a variety of other compounds, such as haloacetonitriles, haloketones, haloaldehydes, chloropicrin, cyanogens chloride, and chlorophenols.