In the List of Hazardous Chemicals in 2002, potassium hypochlorite solution (containing available chlorine > 5%) was classified as hazardous chemicals. Sodium hypochlorite solution is suitable for disinfection, sterilization and water treatment, and some products are only suitable for general industrial purposes.

Dangerous goods in potassium hypochlorite solution are classified as: corrosive products; Invasion route: inhalation, ingestion and percutaneous absorption. Health hazard: Workers who often touch this product with their hands will sweat a lot, their nails will become thinner and their hair will fall off. This product is sensitive.

Extended data:

Sodium hypochlorite will corrode the skin;

The main component of bleach is sodium hypochlorite, which is corrosive. High concentration of sodium hypochlorite is also corrosive. The main component of hair is protein, which will dissolve under the action of high concentration of sodium hypochlorite.

Sodium hypochlorite will react with water and carbon dioxide to produce hypochlorous acid. The main component of human hair is some macromolecular protein. Protein is a long-chain polymer compound, which will break into smaller molecular chains under the strong oxidation of hypochlorous acid. Small molecular chains contain hydrophilic groups such as amino groups and carboxyl groups, so hair can be dissolved in liquid and eventually disappear.

Long-term contact with the skin may make the skin rough, but the public need not worry too much. When using these washing solutions, they must be diluted according to their instructions before use, and cannot be in direct contact with the original solution. It is best to wear gloves when using. Wash clothes several times after using bleach to prevent hypochlorous acid residue from affecting human skin.

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People's Daily Online-White bleach will corrode the skin. Expert: Dilute Southeast University Laboratory Safety Knowledge Learning Network-List of Hazardous Chemicals (2002 Edition) according to the proportion specified.