Dimethyl ether is a flammable gas. It can form explosive mixture when mixed with air. It is easy to burn and explode in contact with heat, sparks, flame or oxidant. Peroxides with potential explosion hazard can be generated in contact with air or under light conditions. The density is higher than that of air, and can spread to a relatively far place at a lower place. They will ignite and burn back in case of fire source. In case of high heat, the internal pressure of the container will increase, and there is a risk of cracking and explosion. It is mainly used as a methylation agent in the production of dimethyl sulfate, and can also be used to synthesize N, N-dimethylaniline, methyl acetate, acetic anhydride, ethylidene dimethyl ester and ethylene; It can also be used as a substitute for alkylating agent, refrigerant, foaming agent, solvent, extractant, anesthetic, fuel, civil compound ethanol and freon aerosol. It is used in hair care, skin care, medicine and coating as various aerosol propellants. Fuel additives promoted abroad have many unique uses in pharmaceutical, dye and pesticide industries.

Properties of dimethyl ether: Dimethyl ether is a colorless gas with slight ether flavor, which is inert and non-carcinogenic but neurotoxic with methyl ether dissolved in heavy oil. It also has excellent miscibility and can be miscible with most polar and non-polar organic solvents. 3.700ml of dimethyl ether gas can be dissolved in 100ml of water, and dimethyl ether is easily soluble in gasoline, carbon tetrachloride, acetone, chlorobenzene, methyl acetate and other organic solvents. After adding a small amount of additives, it can be miscible with water in any ratio. The flame is slightly bright when it burns.
Dimethyl ether is a colorless, odorless and odorless gas at normal temperature and pressure, and a liquid at pressure. Its performance is similar to that of liquefied petroleum gas (LPG).