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[Chemical Knowledge]：Specification for storage and transport of trimethylchlorosilane

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Trimethylmonochlorosilane (Trimethylchlorosilane, referred to as TMCS) is a common organic silicon compound, which is widely used in the field of chemical production raw materials. Due to its toxicity and flammability, strict compliance with safety regulations is required during storage and transportation. This article will detail the safe storage and transportation specifications of trimethylchlorosilane.

1. physical and chemical properties

trimethylchlorosilane is a colorless and transparent liquid with a pungent odor. Its molecular formula is (CH3)3SiCl and its molecular weight is 106.62. TMCS has a density of about 0.96g/cm³, a boiling point of 84°C and a flash point of -17°C. It is easily soluble in organic solvents, such as water, alcohol, ether, etc. TMCS is combustible in air, producing silica and hydrogen chloride gas.

2. toxicity

trimethylchlorosilane is toxic to humans and can enter the human body through inhalation, ingestion and skin contact. It is strongly irritating to the eyes, skin and respiratory system and can cause chemical pneumonia and pulmonary edema. Prolonged exposure to high concentrations of TMCS vapors may cause damage to the nervous system.

3. Security Storage Specification

1. Storage Facilities: TMCS should be stored in a cool, dry, well-ventilated dedicated warehouse. The warehouse shall be far away from open fire and heat source and equipped with fire fighting facilities.
2. Storage container: A container with good sealing performance should be used to store TMCS to prevent leakage. The container shall be marked with the name of the substance and the nature of the hazard.
3. Storage conditions: The storage temperature should be controlled below 25°C to avoid direct sunlight. The storage area shall be free of smoking and open flames.

4. safety transport specification

1. transport vehicles: should be used with dangerous goods transport qualification of special vehicles for transport. The vehicle shall be equipped with corresponding fire fighting equipment and leakage emergency treatment equipment.
2. Transport personnel: Transport personnel should be professionally trained to understand the nature and safe operating procedures of TMCS.
3. Transportation process: During transportation, the stability of the goods should be ensured to prevent collision, dumping and leakage. Transport vehicles should avoid high temperature periods and crowded road sections, and the driving speed should not be too fast.
4. Transport packaging: The packaging of TMCS shall comply with the requirements for packaging of dangerous goods and have the functions of compression resistance, shock resistance and leakage prevention. The packaging shall be marked with the name of the substance, the nature of the hazard and the emergency measures.

5. Leakage Emergency Treatment

Once a TMCS leakage accident occurs, the following measures should be taken:

1. Quickly evacuate the leakage area and cut off the fire source to prevent fire and explosion accidents.
2. Use special equipment to recycle the leakage to avoid environmental pollution.
3. Absorb the residue with a mixture of sand, dry lime or soda ash and collect it in a closed container for disposal.
4. Ventilate the leakage area to ensure air circulation.
5. If you come into contact with leaks, immediately remove contaminated clothing, rinse your skin or eyes with plenty of water, and seek medical attention in time.

In conclusion, in the field of chemical production raw materials, the safe storage and transportation of trimethylchlorosilane is very important. By strictly adhering to storage and transport regulations, the risk of accidents can be reduced and the safety of people and the environment can be guaranteed.

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