2,4-Dichlorophenol

2,4-Dichlorophenol (2,4-DCP) is an organic compound that is a derivative of phenol. It consists of a phenol molecule substituted with two chlorine atoms, at positions 2 and 4. It is used primarily as an intermediate in the preparation of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D).

Chemical Properties

2,4-Dichlorophenol is a white crystalline solid with a characteristic phenolic odor. It is soluble in water and many organic solvents. It is also moderately volatile, which means it can evaporate into the air.

Production

2,4-Dichlorophenol is produced by the chlorination of phenol in the presence of a catalyst, such as sulfuric acid or iron(III) chloride.

Uses

The primary use of 2,4-dichlorophenol is as an intermediate in the production of the herbicide 2,4-D. It is also used in the synthesis of pharmaceuticals, dyes, and other organic compounds.

Health Effects

Exposure to 2,4-dichlorophenol can cause irritation to the skin, eyes, and respiratory tract. It can also cause nausea, headache, and dizziness. Long-term exposure can lead to liver and kidney damage.

Environmental Impact

2,4-Dichlorophenol is toxic to aquatic life and can cause long-term adverse effects in the aquatic environment. It is also a persistent organic pollutant, which means it can remain in the environment for a long time.

See Also

• Phenol
• Chlorination
• 2,4-dichlorophenoxyacetic acid

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