A poisonous, colorless liquid with a pungent smell, used historically as a tear gas and pesticide.
From chloro- (chlorine) and picrin (from picric acid), both compounds containing these chemical elements combined to create this toxic substance.
Chloropicrin was actually used as a chemical weapon in World War I, causing painful burns to eyes and lungs—it's a dark reminder of how chemistry became weaponized before international treaties banned such weapons.
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