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[Chemical Knowledge]：Specification for storage and transport of R22 (chlorodifluoromethane)

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R22 (difluorochloromethane) is a common refrigerant in the field of chemical production raw materials. Due to its unique physical and chemical properties, it is widely used in refrigeration, air conditioning and foaming fields. However, due to its potentially hazardous nature, strict compliance with relevant safety regulations is required during storage and transport. This article will detail the safe storage and transportation specifications of R22.

1. the physical and chemical properties of R22

R22 is a colorless, odorless, non-flammable, non-explosive gas with high stability and chemical inertness. However, under the conditions of high temperature, high pressure or the presence of oxygen, R22 may decompose to produce toxic hydrogen fluoride and hydrogen chloride gas, which is harmful to human body and environment.

2. R22 safety storage specification

1. Storage facilities requirements: R22 should be stored in a cool, dry, well-ventilated special warehouse, avoid direct sunlight and high temperature environment. The warehouse shall be equipped with gas detection devices and fire fighting equipment to ensure safety.
2. Storage container requirements: R22 should be stored in a special high-pressure steel cylinder. The steel cylinder should meet relevant standards and be inspected and maintained regularly to ensure the safety and tightness of the container.
3. Storage limit requirements: According to relevant regulations, the storage capacity of R22 should be controlled within a certain range to avoid security risks caused by excessive storage.

3. R22 safety transport specification

1. Transport vehicle requirements: R22 should use special transport vehicles for transport, vehicles should comply with relevant standards, and have corresponding safety facilities and fire-fighting facilities.
2. Requirements for transportation personnel: transportation personnel shall be professionally trained to understand the nature of R22 and safety operation procedures, and have corresponding safety awareness and emergency handling capabilities.
3. Requirements during transportation: During transportation, the cylinder should be kept in a vertical state to avoid dumping and collision. At the same time, the transportation temperature and pressure should be strictly controlled to avoid the safety risks caused by overtemperature and overpressure.

4. emergency treatment measures

During the storage and transportation of R22, in case of leakage, fire and other safety accidents, corresponding emergency treatment measures shall be taken to reduce losses and hazards. Specific emergency treatment measures include:

1. Leakage treatment: If R22 leakage occurs, the gas source should be cut off immediately, the valve should be closed, and special tools should be used to repair or replace. At the same time, a large amount of water should be used to flush the leakage area and dilute the gas to avoid poisoning or fire caused by excessive concentration.
2. Fire treatment: If a fire occurs, immediately cut off the gas source, close the valve, and use a fire extinguisher to extinguish the fire. At the same time, the site should be evacuated quickly to avoid casualties.

In short, R22, as a common refrigerant, has a wide range of applications in the field of chemical production raw materials. However, due to its potential hazards, it is necessary to strictly comply with relevant safety regulations during storage and transportation to ensure the safety of personnel and the environment.

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