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[Chemical Knowledge]：Specification for storage and transportation of polyvinyl alcohol

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Polyvinyl alcohol (Polyvinyl Alcohol, referred to as PVA) is a common chemical raw material, widely used in coatings, adhesives, fibers, paper, biomedical materials and other fields. Due to its unique physical and chemical properties, polyvinyl alcohol needs to follow certain safety regulations during storage and transportation. This article will detail the safety storage and transportation specifications of polyvinyl alcohol.

1. the physical and chemical properties of polyvinyl alcohol

polyvinyl alcohol is a white or yellowish amorphous powder or particle with good water solubility, film-forming, adhesion and biocompatibility. Its molecular structure contains a large number of hydroxyl groups, making it highly hydrophilic. At the same time, polyvinyl alcohol also has good thermal stability and chemical resistance.

2. the safety of polyvinyl alcohol storage specifications

1. Storage environment: polyvinyl alcohol should be stored in a dry, cool, well-ventilated indoor environment, avoid direct sunlight and high temperature.
2. Storage container: use a well-sealed container for storage to prevent moisture and impurities from entering.
3. Storage period: the storage period of polyvinyl alcohol is generally 2 years, and the quality inspection should be carried out again after expiration.
4. Security management: Establish a strict storage management system and conduct regular inspections of the storage environment to ensure storage security.

3. polyvinyl alcohol safety transportation specifications

1. Packaging requirements: polyvinyl alcohol should be packed in woven bags or cartons lined with plastic bags to ensure that the product will not leak or break during transportation.
2. Transport vehicles: Use transport vehicles with moisture-proof, sun-proof, rain-proof and other functions to keep the vehicle dry and clean.
3. Loading and unloading requirements: During the loading and unloading process, you should handle it with care to avoid damage to the packaging and ensure the integrity of the product.
4. Transport insurance: In order to reduce transport risks, appropriate transport insurance should be purchased.

4. the safety operation of polyvinyl alcohol

1. Operators should be professionally trained to understand the nature of polyvinyl alcohol and safe operation procedures.
2. In the process of operation, personal protective equipment such as protective gloves and masks should be worn to avoid direct contact with polyvinyl alcohol.
3. The operation site shall be kept clean and orderly, and dangerous behaviors such as smoking and open fire shall be prohibited.
4. When using polyvinyl alcohol for production, it should be operated in strict accordance with the requirements of the production process to ensure product quality and production safety.

5. polyvinyl alcohol waste disposal specification

1. waste polyvinyl alcohol should be in accordance with the relevant national regulations and standards for safe disposal, to prevent harm to the environment and the human body.
2. Incineration, landfill and other treatment methods can be used, but the relevant environmental protection requirements should be followed in the treatment process to avoid secondary pollution to the environment.

In short, polyvinyl alcohol, as a common chemical production raw material, needs to strictly abide by safety regulations during storage, transportation and operation to ensure product quality and production safety. At the same time, when dealing with waste polyvinyl alcohol, we should also follow the relevant environmental protection requirements to protect the environment and human health.

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