Ethyl carbamate is an important chemical raw material. Analysis of its main downstream uses.

Ethyl carbamate (EC) is an organic compound, also known as urethane, urethane, and urethane. Its molecular formula is C3H7NO2. Its appearance is colorless crystal or white powder, odorless, and has a refreshing smell. Ethyl carbamate is easily soluble in water, and the aqueous solution is neutral. It is easily soluble in ethanol, ether, glycerin and other organic solvents. It is slightly soluble in chloroform and olive oil. It is easy to burn. There is an explosion hazard in contact with phosphorus pentachloride. When heated to 103°C, it sublimates rapidly and decomposes to emit toxic fumes.

The preparation method of ethyl carbamate mainly includes: using nitric acid and urea as raw materials, reacting to generate urea nitrate, using sulfuric acid as a catalyst, adding ethanol and sodium nitrite for esterification reaction, and obtaining crude ethyl carbamate, which is then filtered and Distillation, crystallization, drying and other processes are used to obtain the finished product; using phosgene (phosgene) and ethanol as raw materials, the reaction generates ethyl chloroformate, and then an ammonolysis reaction is performed to obtain the product.

According to the “Urethane Industry In-depth Market Research and Investment Strategy Suggestions Report 2022-2026” released by the Industrial Research Center, Ethyl carbamate is an alkyl carbamate and is an important chemical raw material that can be used as raw materials and intermediates for organic synthesis. It has a wide range of downstream uses and can be used in the chemical industry to synthesize various chemicals and It is used to prepare medicines, pesticides (such as triazine herbicides, triadimefon fungicides), spices, and can also be used as cosolvents, printing and dyeing colorants, biochemical research reagents, etc.

Industry analysts said that in the chemical industry, urethane can be used to synthesize polyurethane, polyacetamide, isocyanate, and melamine derivatives , pyrrole, etc. Urethane can also be used to prepare urethane rubber, which is used to make tires. It has the characteristics of good heat resistance, strong wear resistance, and long service life. It can be used in the manufacture of traction wheels, guide wheels, etc. Applications In fields such as material handling machinery and construction machinery.

In the field of medicine, ethyl carbamate can be used as a hypnotic and sedative; it can be used as a cosolvent for injections, such as the production of quinine-urethane injection, which is mainly used in the treatment of varicose veins; ethyl carbamate has inhibitory effects The role of cell division can reduce the production of white blood cells in the blood, and has a certain effect in the treatment of chronic myeloid leukemia and multiple myeloma; ethyl carbamate has a certain inhibitory ability on the nerve center, but has a small impact on the respiratory center. It is a It is a safer anesthetic for animal experiments and can therefore be used in the field of biochemical research.

In the agricultural field, in addition to producing pesticides such as herbicides and fungicides, urethane can also be used in the transportation of aquatic products. Similar to its effect on experimental animals, ethyl carbamate has a small inhibitory effect on the nerve center of fish and has little impact on the respiratory system and blood circulation system. Therefore, it can be used as an anesthetic for fish. During the transportation of fish, Adding urethane to water can improve fish survival rates.