Inhalation has a stimulating effect on the respiratory tract, causing cough, chest pain, and difficulty breathing. Vapor is irritating to the eye and can cause burns. Abdominal pain, nausea, vomiting, and shock occur orally. The vapor forms an explosive mixture with the air, causing a combustion explosion in the event of an open flame or high heat. Contact with oxidant reacts strongly to cause combustion. Accidental release measures: evacuate personnel and restrict access. Cut off the fire source. Handling personnel wear emergency protective equipment and cut off the source of leakage as much as possible. Rinse with a small amount of water, dilute the wash water and put it into the waste system. When a large number of buildings are built, dikes or digging pits are constructed. Use an explosion-proof pump to transfer to a tank truck or special collector for recycling or transport to a waste disposal site for disposal. Extinguishing media: Anti-solvent foam, dry powder, carbon dioxide, water spray.