Bangkok, The Ministry of Industry revealed that the cause of the fire at a warehouse in the Rama 2 area was from extremely hot weather. Causes thiourea dioxide to spontaneously ignite. Warn establishments to separate chemicals that can ignite or that can react. Afraid it will happen again. Because the weather is still very hot. Ms. Pimpatra Wichaikul, Minister of Industry, said that Received a report of the cause of a chemical leak in a chemical warehouse. Until a cloud of white smoke appeared in the Rama 2 area around 2:10 a.m. on April 25, the location of the incident was Company chemical storage building President Chemicals Co., Ltd. From ordering the Permanent Secretary of the Ministry of Industry and the Director-General of the Department of Industrial Works to investigate the cause. It has been reported that President Chemical Company Limited does not qualify as a factory according to the factory law. As for the white smoke, it came from two chemical tanks in the said building. Officers then moved che micals from the same group outside the building. Then use water to control the smoke that occurs. When opening the package The chemicals hit the air causing a fire inside the tank. Therefore, we rushed to control the fire to prevent the chemicals from spreading. It took approximately 45 minutes to control the fire. When examining the type of chemicals found at the scene, it appears that It is thiourea dioxide, which is a chemical that is not classified as a hazardous substance according to the Act. Hazardous Substances B.E. 2535 (1992) but are chemicals classified as having a risk of spontaneous combustion. (self-heating) where the heat comes from the chemical reacting with oxygen in the air at the temperature around you. When heat accumulates continuously inside it reaches a temperature that can ignite on its own. (auto-ignition temperature) therefore ignition occurs. It is assumed that the primary cause is the accumulation of heat inside the package of thiourea dioxide, causing the inside of the package t o have a high temperature that causes a cloud of smoke to appear. The Minister of Industry reiterated that Has instructed the Permanent Secretary of the Ministry of Industry Director General of the Department of Factory and industry in every province Urgently notify establishments that store chemicals. Be extra careful. and inspect the storage location to meet the requirements Both factories and occupied locations store hazardous substances. or stored chemicals You must check the Material Safety Data Sheet (MSDS). If there are other chemicals that are self-igniting or can react with each other and cause a fire. must be separated Including storing at an appropriate temperature as the current weather conditions continue to have high temperatures. Thiourea or Thiocarbamate (Thiourea) has the appearance of white crystals. It is a type of organic substance containing sulfur or organosulfur. It has a structure similar to urea. except oxygen that was replaced by sulfur Passenger thiourea It is useful in the agricu ltural sector because it can increase the percentage of plant buds because thiourea contains 36% nitrogen and sulfur particles are transformed into sulfate, which dissolves easily in water. Moves through the food pipe To use for protein synthesis in young shoots Makes plants have more food to accumulate Used to induce flowering as well as stimulating seed germination It is also used in the industrial sector including Used to synthesize dyes pigment additives It is used as a photosensitizer to initiate or accelerate chemical reactions in photochemical reactions. Light stabilizers to prevent deterioration of polymer materials. Used as an electrode material for electrochemical sensors, used as an electrochemical catalyst. Used as a rubber additive to improve the performance and quality of rubber products. Source: Thai News Agency