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1,3-Dichloropropene, also known as Telone or D-D, is a chemical compound used in agriculture as a soil fumigant, nematicide, and insecticide. It is a colorless liquid with a sweet smell that is manufactured by Dow Chemical Company and Shell Chemicals.

Chemical Properties[edit | edit source]

1,3-Dichloropropene is a chlorinated hydrocarbon that exists as two isomers: cis-1,3-dichloropropene and trans-1,3-dichloropropene. It has a molecular weight of 111.0 g/mol and a density of 1.256 g/cm³. It is slightly soluble in water and readily soluble in organic solvents.

Uses[edit | edit source]

1,3-Dichloropropene is primarily used as a pre-plant soil fumigant for the control of nematodes in soil. It is also used to control insects and weeds in the soil before planting crops such as cotton, soybeans, potatoes, and peanuts.

Health Effects[edit | edit source]

Exposure to 1,3-dichloropropene can cause irritation to the eyes, skin, and respiratory tract. Long-term exposure can lead to damage to the liver, kidneys, and lungs. It is classified as a Group B2, probable human carcinogen, by the Environmental Protection Agency (EPA).

Environmental Impact[edit | edit source]

1,3-Dichloropropene is highly toxic to aquatic life and can contaminate groundwater. It is also a volatile organic compound that contributes to the formation of ozone in the atmosphere.

Regulation[edit | edit source]

In the United States, the use of 1,3-dichloropropene is regulated by the EPA under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA).

See Also[edit | edit source]

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