News / Taizhou Hongxing Chemical Co., Ltd.
Talking about the characteristics and production process of benzoyl chloride
发布时间：2019/12/11 17:37:00 Source: http://aitixa.com/news290153.html Release time: 2019/12/11 17:37:00
Benzoyl chloride is a colorless liquid with a pungent odor, is toxic, and is easily soluble in ether and chloroform. Water or ethanol will gradually decompose into benzoic acid.
Benzoyl chloride is an important intermediate for the preparation of dyes, organic peroxides and resins, and is often used in the production of photography. The product will volatilize into smoke when exposed to the air, with a special irritating odor, which irritates the eye mucous membranes and tears. The following describes the preparation method of this product.
Phosgene method Nitrogen is used to catch phosgene, the tail gas is absorbed and destroyed, and then the product is obtained by vacuum distillation.
2. Phosphorus trichloride method. The benzoic acid is dissolved in a solvent such as toluene, and then phosphorus trichloride is added dropwise. After the dropwise reaction, the reaction is carried out for several hours. The toluene is distilled off, and the finished product is distilled off.
3. Trichloromethylbenzene method. Toluene is firstly chlorinated in the side chain and then hydrolyzed to obtain the product.
In summary, in order to avoid leakage and failure of benzoyl chloride and cause damage to the human body, it should be produced according to the above specifications. Wear protective measures before production, and use caution when using.