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[Chemical Knowledge]：Properties and Uses of Trichloroethylene

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Trichloroethylene is an important chemical raw material with unique properties and a wide range of uses. This article will detail the nature, production methods, uses and safety measures of trichloroethylene.

1. the properties of trichloroethylene

trichloroethylene is a colorless, transparent, volatile organic compound with a strong pungent odor. Its chemical properties are stable and it is not easy to react with other substances, but under high temperature, light and acidic conditions, decomposition and chlorination reactions may occur. Trichloroethylene has good solubility and can dissolve many organic substances, so it is often used as a solvent in chemical production.

2. trichloroethylene production methods

trichloroethylene production methods are mainly two: one is the vinyl chloride method, the other is the acetylene method. The vinyl chloride method is to react vinyl chloride gas with chlorine gas under the action of a catalyst to produce a mixture of trichloroethylene and tetrachloroethylene, and then to obtain trichloroethylene by distillation. The acetylene law is the reaction of acetylene gas with chlorine gas under the action of a catalyst to produce dichloroethane, which then reacts with chlorine gas to obtain trichloroethylene.

3. trichloroethylene uses

1. solvent: trichloroethylene is a good solvent, can dissolve many organic substances, such as resin, rubber, grease, etc., so it is widely used in chemical, pharmaceutical, pesticide and other industries.
2. Refrigerant: Trichloroethylene has a low boiling point and high vapor pressure, so it can be used as a refrigerant for low-temperature refrigeration and air conditioning systems.
3. Extractant: Trichloroethylene has a high extraction capacity for many substances, so it can be used to extract or separate certain substances from solutions.
4. Others: Trichloroethylene can also be used to produce some special chemicals, such as chlorinated rubber and chlorinated polyethylene.

4. safety measures

Because trichloroethylene is irritating and toxic, strict safety measures need to be taken during production and use. Operators should wear protective equipment to avoid direct contact with trichloroethylene. The production process should be closed to prevent gas leakage from polluting the environment. At the same time, the production equipment should be regularly inspected and maintained to ensure the normal operation of the equipment and reduce the risk of accidents.

In conclusion, trichloroethylene, as an important raw material for chemical production, has a wide range of uses and good market prospects. In the process of production and use, strict safety measures should be taken to ensure the safety of personnel and the environment. In the future, with the continuous progress of science and technology and the expansion of application fields, the production technology and use of trichloroethylene will be further improved and developed.

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