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[Chemical Knowledge]：m-xylene. Storage methods and transport specifications

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1. of safety storage and transportation specification
of m-xylene Introduction

m-xylene is an important chemical raw material, widely used in medicine, pesticides, dyes, 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 storage and transportation of m-xylene, the corresponding specifications are formulated in this paper.

2. the physical and chemical properties of m-xylene

m-xylene is a colorless transparent liquid with pungent odor. Its molecular formula is C8H10, relative molecular mass is 106.17, density is 0.866g/cm3, melting point is -47.9 ℃, boiling point is 139.1 ℃. m-xylene is insoluble in water and miscible with alcohol, ether, acetone and other organic solvents.
of the risk of

3. m-xylene
m-xylene is a flammable liquid, which can cause combustion and explosion in case of open fire and high heat. In addition, m-xylene has a stimulating effect on the eyes and respiratory tract, and inhalation of high concentrations of m-xylene can cause central nervous system anesthesia and even lead to death.

4. storage specification

1. The storage place should be selected in a well-ventilated place away from the fire source, and set up the corresponding fire fighting equipment.
2. The storage container shall meet the relevant national standards and have sufficient strength and tightness to prevent leakage.
3. The container for storing m-xylene shall be marked with information such as substance name, hazard level and emergency measures.
4. During the storage process, the integrity of the container and its accessories should be checked regularly, and the damage and leakage should be dealt with in time.

5. transportation specifications

1. Transportation vehicles should comply with relevant national standards and have sufficient strength and sealing to prevent leakage.
2. During transportation, it should be kept stable, avoid violent vibration, collision and friction, and prevent container damage.
3. Transportation vehicles shall be equipped with corresponding fire fighting equipment and leakage emergency treatment equipment.
4. Avoid high temperature, open fire and other dangerous factors during transportation to prevent combustion and explosion accidents.
5. During transportation, the requirements of relevant national laws, regulations and standards shall be observed to ensure transportation safety.

6. emergency treatment measures

1. In case of leakage accident, the leakage source should be cut off immediately, mixed with sand, dry lime or soda ash and recycled to the waste treatment site for disposal.
2. In the event of a fire accident, immediately cut off the fire source and use foam, dry powder, carbon dioxide and other fire extinguishing equipment to extinguish the fire. At the same time, should report to the local fire department, and in accordance with the emergency plan for disposal.

7. conclusion

m-xylene is an important raw material for chemical production, and its storage and transportation safety is very important. In order to ensure the safety during storage and transportation, the corresponding specifications and standards should be followed, the training of management and operation personnel should be strengthened, and the safety awareness and skill level should be improved. At the same time, emergency plans and disposal measures should be established and improved to ensure that accidents can be dealt with in a timely and effective manner to ensure the safety of people's lives and property.

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