Phenol ketone products

Plastic rubber

Current Location： Home > News > Chemical Knowledge > Properties and Uses of Thionyl Chloride

[Chemical Knowledge]：Properties and Uses of Thionyl Chloride

Read： 509 Time：20months ago Source：Transform the World with Simplicity

The nature and use
of thionyl chloride
1. The nature of thionyl chloride

thionyl chloride, also known as sulfur dioxide chlorine, is a colorless or light yellow fuming liquid that is irritating and corrosive. Its molecular formula is SOCl2, melting point is -104.5 ℃, boiling point is 78.8 ℃. Thionyl chloride is unstable and highly reactive. It is easily decomposed into sulfuric acid and hydrochloric acid in water, and it is also miscible with organic solvents such as alcohols, ethers, and benzene.

2. the use of thionyl chloride

thionyl chloride has a wide range of uses in the field of chemical production raw materials, the following is its main application areas:

1. as a chlorinating agent

thionyl chloride is a strong chlorinating agent, can be used to the alcohols, phenols, aldehydes, ketones, ethers and other organic chlorination, generating the corresponding chlorinated hydrocarbons. At the same time, thionyl chloride can also be used for the chlorination of inorganic substances, such as chlorinated metals, non-metals and some salts.

2. as a catalyst

thionyl chloride in some reactions can be used as a catalyst to promote the reaction. For example, in an esterification reaction, thionyl chloride can catalyze the formation of an ester from a carboxylic acid and an alcohol.

3. for the preparation of other chemicals

thionyl chloride can be used as raw materials for the preparation of other chemicals, such as chlorosulfonic acid, dimethyl sulfate, phosgene.

3. thionyl chloride production method

industrial production of thionyl chloride main methods are:

1. sulfuric acid method: chlorine and sulfur dioxide in the presence of sulfuric acid reaction, generate thionyl chloride and sulfuric acid.

2. phosphoric acid method: in the presence of phosphoric acid, chlorine and sulfur dioxide react to generate thionyl chloride and phosphoric acid. Precautions for storage and use of

4. thionyl chloride

Because thionyl chloride is irritating and corrosive, the following matters need to be paid attention to during storage and use:

1. Store in a cool, dry, well-ventilated special warehouse, away from fire and heat sources.

2. Separate from oxidants, acids, alkali metals and edible chemicals, and avoid mixed storage.

3. Equipped with corresponding varieties and quantities of fire fighting equipment and leakage emergency treatment equipment.

4. When handling light unloading, to prevent damage to packaging and containers.

In short, thionyl chloride has a wide range of uses in the field of chemical production raw materials, but it is necessary to pay attention to safety matters during use to avoid harm to the human body and the environment.

Previous： Properties and Uses of Manganese Sulfate

Next： Properties and Uses of Lead Nitrate

News Categories