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[Chemical Knowledge]：Specification for storage and transport of dimethyl carbonate

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Dimethyl carbonate (Dimethyl Carbonate, DMC) is a common chemical raw material, widely used in synthetic fibers, plastics, pesticides, pharmaceuticals and other fields. Because dimethyl carbonate has flammable, explosive, toxic and other characteristics, it is necessary to strictly comply with relevant safety regulations during storage and transportation.

1. the physical and chemical properties of dimethyl carbonate

dimethyl carbonate is a colorless transparent liquid with pungent odor. Its molecular formula is C3H6O3 and its molecular weight is 90.07. Dimethyl carbonate is insoluble in water, but miscible with organic solvents such as alcohols, ethers, ketones, etc. Dimethyl carbonate has a low flash point, is easy to burn, has a wide explosion limit, and is toxic.

2. safety storage specifications for dimethyl carbonate

1. The storage place should choose a cool, ventilated and dry place, away from fire, heat and direct sunlight.
2. The storage container should be made of stainless steel or carbon steel, and avoid the use of aluminum, copper and other metal containers to avoid chemical reactions.
3. Keep the container airtight during storage to prevent leakage and volatilization.
4. The storage site shall be equipped with corresponding fire-fighting equipment and leakage emergency treatment equipment.

3. of dimethyl carbonate transport specification

1. transport vehicles should meet the relevant standards, with fire, explosion, anti-static and other safety measures.
2. Keep running smoothly during transportation to avoid severe vibration and collision.
3. Keep away from fire, high temperature and other dangerous factors during transportation.
4. The transportation personnel shall have corresponding safety knowledge and operation skills, and can only take up their posts after professional training.

4. Dimethyl Carbonate Leakage Emergency Treatment

1. In case of leakage, immediately cut off the leakage source and take measures to prevent the leakage from spreading.
2. For a small amount of leakage, sand, dry lime or soda ash can be mixed and recycled.
3. For a large number of leaks, embankments or pits should be built and covered with foam to reduce steam disasters. Transfer to tank truck or special collector with explosion-proof pump, recycle or transport to waste treatment site for disposal.

5. of dimethyl carbonate operation precautions

1. Closed operation, strengthen ventilation. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that the operator wear self-priming filter respirator (half mask), chemical safety goggles, anti-static overalls and rubber gloves. Keep away from fire and heat sources. Smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent vapor leakage into the workplace air. Avoid contact with oxidants, acids, alkali metals. Handle lightly to prevent damage to packaging and containers. Equipped with corresponding types and quantities of fire fighting equipment and leakage emergency treatment equipment. Empty containers may leave harmful substances.
2. Store in a cool, ventilated warehouse. Keep away from fire and heat source. The warehouse temperature should not exceed 30 ℃. Should be stored separately with oxidants, acids, alkali metals, do not mix storage. Explosion-proof lighting and ventilation facilities shall be adopted. It is forbidden to use mechanical equipment and tools that are easy to produce sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials.

In short, dimethyl carbonate, as a common raw material for chemical production, needs to strictly abide by relevant safety regulations during storage and transportation to ensure the safety of personnel and the environment.

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