CHLOROPICRIN - SCI &
TECH
News: Chloropicrin: chemical weapon
or pesticide?
What's in the news?
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The U.S. State Department has accused Russia of
utilizing the chemical agent chloropicrin in Ukraine, stating that this action
constitutes a breach of the Chemical Weapons Convention.
Chloropicrin:
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Chloropicrin, also known as nitro chloroform, serves dual roles as a warfare agent and pesticide.
Physical Appearance:
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It manifests as a colorless to yellow oily liquid.
Usage:
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Chloropicrin finds extensive application as a
fungicide, herbicide, insecticide, nematicide, and antimicrobial agent.
Properties:
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It possesses irritant properties akin to tear gas,
characterized by an intensely irritating odor.
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Its absorption can occur through inhalation,
ingestion, and skin contact.
Historical Backdrop:
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Initially developed as a poison gas during the First World War, both the Allied and
Central Powers employed chloropicrin.
Manufacturing Process:
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Chloropicrin is synthesized through a chemical reaction involving sodium
hypochlorite (commonly known as bleach) and nitromethane, an industrial
solvent.
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Alternatively, it can be produced by combining
chloroform with nitric acid, resulting in chloropicrin and water.
Health Impacts:
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Chloropicrin is associated with documented
irritative and tear-inducing effects on humans.
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Moreover, it is highly toxic, carcinogenic, and
capable of inducing vomiting.
Go back to basics:
Chemical Weapons
Convention:
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The Chemical Weapons Convention is a multilateral
treaty aimed at banning chemical weapons
and mandating their destruction within a specified timeframe.
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It officially entered into force on April 29, 1997.
Members:
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The convention is open to all nations, with 193
states currently being parties to it.
Provisions:
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Signatory states are required to declare their chemical weapons
stockpiles, chemical weapons production facilities (CWPFs), relevant chemical
industry facilities, and other weapons-related information to the Organization
for the Prohibition of Chemical Weapons (OPCW).
India and Chemical
Weapons Convention:
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India is among the signatories and parties to the
Chemical Weapons Convention, having signed the treaty in Paris on January 14,
1993.
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Pursuant to the provisions of the convention, India
enacted the Chemical Weapons Convention
Act, 2000.