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[Chemical Knowledge]：Specification for storage and transportation of polycrystalline silicon

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The safety of polysilicon storage and transportation specifications

1. Introduction

Polysilicon is an important raw material in the production of chemicals, widely used in semiconductors, solar cells and other fields. Due to its special physical and chemical properties, polysilicon needs to strictly comply with safety regulations during storage and transportation to ensure the safety of personnel and the environment. This article will detail the safe storage and transportation specifications for polysilicon.

2. the physical and chemical properties of polycrystalline silicon

polycrystalline silicon is composed of countless small single crystal silicon, which has metallic luster and brittleness. It is stable at room temperature, but reacts with oxygen at high temperatures to produce silica. Polysilicon is insoluble in water, but can react with strong acids such as hydrofluoric acid.

3. polysilicon storage specification

1. Storage environment: polysilicon should be stored in a dry, cool, well-ventilated indoor environment, avoid direct sunlight and high temperature.
2. Storage container: Polysilicon should be stored in a container with corrosion resistance and good sealing performance to prevent it from reacting with other substances or leaking.
3. Storage identification: There should be a clear identification in the storage container of polysilicon, including the material name, hazardous properties, storage precautions and other information.

4. polysilicon transportation specifications

1. Transportation packaging: The transportation packaging of polysilicon should meet relevant standards and have sufficient strength and sealing performance to prevent leakage or damage during transportation.
2. Transport vehicles: Polysilicon should be transported by special transport vehicles, which should have corresponding protective measures and fire fighting equipment.
3. Transportation personnel: personnel transporting polysilicon should be professionally trained to understand the nature of polysilicon and transportation safety knowledge.

5. polysilicon safe operation specification

1. Operators should be professionally trained to understand the nature of polysilicon and safe operation knowledge.
2. Wear protective clothing, gloves and other personal protective equipment during operation to avoid direct contact with polysilicon.
3. The operation site shall be provided with corresponding fire-fighting facilities and safety warning signs.

6. Polysilicon Leakage Treatment Specification

1. If polysilicon leakage occurs, immediately stop the operation, close the leakage source, and start the emergency treatment procedure.
2. Use special tools and equipment to clean the leaked polysilicon and avoid contact with skin.
3. The cleaned wastes shall be disposed in accordance with relevant environmental protection regulations to prevent environmental pollution.

7. conclusion

polysilicon as an important raw material in chemical production, its safe storage and transportation is very important. By understanding the physical and chemical properties of polysilicon, strict compliance with storage, transportation and operation specifications can effectively ensure the safety of personnel and the environment. In practical work, we should strengthen the publicity and education of polysilicon safety and environmental protection, improve the safety awareness and operation skills of relevant personnel, and ensure the safety and environmental protection of polysilicon production and use process.

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