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[Chemical Knowledge]：Specification for storage and transport of diethyl oxalate

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The safe storage and transportation specification
of diethyl oxalate
1. Introduction

diethyl oxalate is an important organic chemical raw material, widely used in medicine, pesticides, plastics and other fields. However, due to its flammable, toxic and other characteristics, the safety requirements for storage and transportation are extremely high. In order to ensure the safety of diethyl oxalate during storage and transportation, it is very necessary to formulate a set of strict specifications.

2. the physicochemical properties of diethyl oxalate

diethyl oxalate is a colorless transparent liquid with pungent odor. The melting point is -40 ℃, the boiling point is 185 ℃, the flash point is 77 ℃, the relative density is 1.119, insoluble in water, miscible in ethanol, ether and other organic solvents. Diethyl oxalate encounters open flame, high heat or contact with oxidant, which may cause combustion and explosion.

3. diethyl oxalate safe storage specification

1. storage place should be cool, ventilated, away from fire, heat source, to prevent direct sunlight. The warehouse temperature should not exceed 30 ℃.
2. The storage site shall be equipped with corresponding varieties and quantities of fire-fighting equipment. It is forbidden to use mechanical equipment and tools that are easy to produce sparks.
3. The storage area shall be equipped with leakage emergency treatment equipment and suitable containment materials.
4. Handle and unload lightly to prevent damage to packaging and containers.

4. diethyl oxalate safety transport specification

1. transport vehicles should be qualified for the transport of dangerous goods, drivers and escorts should be qualified for the transport of dangerous goods.
2. During transportation, ensure that the container does not leak, collapse, fall or damage. It is strictly prohibited to mix with oxidants, edible chemicals, etc.
3. During transportation, the transportation vehicles shall be equipped with corresponding varieties and quantities of fire-fighting equipment and leakage emergency treatment equipment. In summer, it should be transported sooner or later to prevent sunlight exposure.
4. Stay away from kindling and heat sources during stopover. The exhaust pipe of the vehicle must be equipped with a fire retardant device, and it is forbidden to use mechanical equipment and tools that are easy to produce sparks for loading and unloading.

5. diethyl oxalate leakage emergency treatment

1. Quickly evacuate the personnel from the leakage pollution area to the safety area, and isolate, strictly restrict access. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and fire protection clothing. Cut off leakage sources as much as possible to prevent entry into restricted spaces such as sewers and flood drainage ditches.
2. Small amount of leakage: adsorption or absorption with sand or other non-combustible materials. Can also be washed with a lot of water, wash water diluted into the waste water system.
3. A large number of leaks: build a dam or dig a pit to accommodate; cover 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.

6. conclusion

diethyl oxalate as an important chemical raw material, its safe storage and transportation is of great significance to ensure production safety. By strictly complying with the above specifications, the safety risks of diethyl oxalate during storage and transportation can be effectively reduced, and the safety of personnel and the environment can be guaranteed.

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