Dimethyl carbonate CA S Login No. 616-38-6 200kg/barrel 99.9%, 3500 yuan, Tietong
Melting point 2-4 ℃ Boiling point 90 Water soluble insoluble water density 1.069 g/cm3 Appearance colorless transparent, slightly smelling, slightly sweet liquid Flash point 17 ℃ 200kg/barrel
Also called methyl carbonate; DMC； The chemical formula of ethane carbonate is C3H6O3; （CH3O）2CO ； CH3O-COOCH3 molecular weight 90.07 EINECS registration number 210-478-4
The large dimethyl carbonate production base in the north, the dimethyl carbonate manufacturer and manufacturer of Qilu Petrochemical,
Dimethyl carbonate (DMC) is a kind of chemical raw material with excellent environmental protection performance and wide use. It is an important organic synthesis intermediate. Its molecular structure has a variety of reaction properties. It is safe, convenient and easy to transport in production. It is a "green" chemical product with development prospects.
Edit nature and purpose
The excellent properties and special molecular structure of DMC determine the wide use of DMC, which can be summarized as follows:
Substitute for carbonylation agent
Although the reaction activity of (Cl-CO-Cl) is high, DMC (CH3O-CO-OCH3) has similar carbonyl compounds, and the by-product is * * *. Therefore, DMC can be replaced as a safe reaction reagent to synthesize carbonate derivatives, which will be an area of great demand for DMC. It is predicted that more than 80% of DMC will be used to produce polycarbonate in 2005;
Replacing Dimethyl Ester as Methylating Agent
For similar reasons, dimethyl ester (CH3O-SO-OCH3) also faces the pressure of being eliminated key The product is also methylated when broken, and DMC has higher yield and simpler process than dimethyl ester. Its main applications include the synthesis of organic intermediates.
DMC has excellent solubility, narrow range of melting and boiling points, high surface tension, low viscosity, low dielectric constant, high evaporation temperature and fast evaporation speed, so it can be used as a solvent coating Industrial sector. It can be seen from Table 1 that DMC also has the characteristics of high flash point and low steam pressure, so it is a green solvent integrating cleanliness and safety.
Reserve attention
Keep away from kindling and heat sources. The warehouse temperature should not exceed 37 ℃. keep container seal up. It should be stored separately from * * *, reducing agents, acids, etc., and should not be mixed.
The storage area shall be equipped with leakage emergency treatment equipment and suitable materials for storage in a cool, dry and well ventilated incombustible warehouse.
The storage area shall be equipped with emergency treatment equipment and appropriate occupational exposure limit for materials to be taken in (China), no standard occupational exposure limit (America), no standard monitoring method, no data, engineering control, airtight production process, and enhanced ventilation and respiratory system protection when the concentration in the air exceeds the standard.
Transportation attention
Packing mark * * * Packing method: ordinary wooden case outside ampoule bottle; Precautions for the transportation of threaded glass bottles, iron cap pressure glass bottles, plastic bottles or ordinary wooden boxes outside metal barrels (cans) The transportation vehicles shall be equipped with corresponding types and quantities of fire-fighting equipment and leakage emergency treatment equipment.
It is better to transport in the morning and evening in summer. The tank (tank) car used for transportation shall be equipped with grounding chain, and the tank can be equipped with hole partition to reduce static electricity generated by vibration. It is strictly prohibited to mix with * * *, reducing agent, edible chemicals, etc. During transportation, it shall be protected from sun exposure, rain and high temperature.
