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[Chemical Knowledge]：Key Points to Pay Attention to in Making Acid Chloride

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The preparation of acid chloride is a common operation in organic chemistry experiments, but some key points need to be paid special attention to during the operation. The choice of suitable solvents and reaction conditions for

is very important. In general, dry methylene chloride is the more commonly used solvent, but other solvents may be selected according to specific experimental requirements.

carefully control the reaction temperature and time to avoid side reactions or excessive reactions. In addition, the addition of ferrous chloride and other catalysts should be careful to avoid unnecessary danger to the operator.

After the reaction, the melting point determination and infrared spectrum analysis of the product should be carried out in time to confirm the purity of the product.

experiment operation should strictly follow the safety procedures, wear personal protective equipment and ensure good ventilation. By noting the above key points, it is believed that the reader will be able to operate more skillfully and safely in the experiments for the preparation of acid chlorides.

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