In the chemical industry,
dichloromethane (CAS#75 - 09 -
2), as a crucial organic compound, has always been the focus of the industry. Recently, the industry trends and regulatory policy adjustments of dichloromethane have triggered extensive discussions within the industry. The preparation methods of dichloromethane mainly include the
methanol chlorination method and the chloromethane method. The methanol chlorination method involves the reaction of methanol and hydrogen
chloride under the action of a catalyst to generate dichloromethane. This process is simple and low - cost, and can also produce by - products such as chloroform and carbon tetrachloride, which are widely used. The chloromethane method is the reaction of chlorine and
methane at high temperatures to generate chloromethane and hydrogen chloride, and then dichloromethane is separated by distillation. This process has high selectivity, but also has high requirements for cost and equipment. Dichloromethane Manufacturers need to choose the appropriate production method according to their own conditions.
Dichloromethane has a wide range of applications in many fields. In the industrial field, it is an excellent solvent, used to dissolve fats, oils,
resins, etc., and can also be used as a metal degreasing agent, paint solvent, aerosol propellant, etc. In the pharmaceutical field, it is used as a reaction medium for the preparation of drugs such as ampicillin, carbenicillin, and cefalexin, and is also used for drug extraction and separation. In the electronics industry, it is used to clean precision equipment such as electronic components and optical instruments. Dichloromethane Suppliers should pay attention to the demand characteristics of different application fields.
In terms of safety matters, dichloromethane is toxic to a certain extent. Long - term or high - concentration exposure can pose a serious threat to health. For example, high - concentration exposure can inhibit the central nervous system, causing symptoms such as dizziness and coma, and may also irritate the respiratory tract, affect heart function, and cause liver and kidney damage. The International Agency for Research on Cancer classifies it as a class 2a carcinogen. It can enter the human body through inhalation, skin contact, or ingestion, with inhalation being the main route of exposure. Therefore, during the use process, it is necessary to strengthen ventilation and exhaust, wear gas masks, protective glasses, protective clothing, and protective gloves, conduct regular occupational health examinations for workers, and strengthen occupational health and safety education.
The latest industry information shows that the current supply - demand pattern of the dichloromethane market is complex. In the domestic market, the mainstream bulk water transaction prices in some areas, such as the Jiangsu - Zhejiang dichloromethane market, are between 2,430 - 2,650 yuan/ton, and the mainstream bulk water transaction prices in the Shandong market are between 2,350 - 2,450 yuan/ton. The overall market inventory is relatively high. Although there has been a slight price rebound recently, due to the lack of obvious improvement in the demand side, the transaction lacks sustainability. From a global perspective, with the economic development of emerging market countries, the demand for dichloromethane has increased in some fields. For example, in the refrigerant field, due to the rising demand for air conditioners, refrigerators and other refrigeration equipment in developing countries, the demand for dichloromethane as a refrigerant raw material has been driven.
In terms of regulatory policy dynamics, the control of dichloromethane by various countries is becoming increasingly strict. The U.S. Environmental Protection Agency has stopped the manufacturing, processing, and distribution of dichloromethane in the civilian field based on the Toxic Substances Control Act, and restricted its use in most industrial and commercial fields. Since May 5, 2025, distribution to the civilian market has been prohibited, and since April 28, 2026, most industrial and commercial uses will be prohibited, with only 13 special - use exemptions. The European Union has included dichloromethane in the restriction list of the REACH regulations, restricted its content in paint strippers, and required enterprises to provide alternative solutions and risk assessment reports. The South Korean Ministry of Environment has revised the regulations to prohibit the use of dichloromethane in household cleaners, sprays, and paint removers for homes, buildings, and furniture. It will be implemented according to the Chemical Substances Control Act from January 1, 2026. Shenzhen, China, has issued the "Limits of Volatile Organic Compounds and Specific Harmful Substances in Cleaners for Microelectronics and Electronic Assembly", which standardizes the content of dichloromethane in related products. Dichloromethane Manufacturers and Suppliers need to closely monitor these regulatory changes to ensure compliance and sustainable development.
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