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[Chemical Knowledge]：Properties and Uses of Sodium Hypochlorite

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Sodium hypochlorite is an important raw material for chemical production, which has a wide range of properties and uses. This article will detail the nature of sodium hypochlorite, production methods, safety, environmental protection and use.

1. the properties of sodium hypochlorite

sodium hypochlorite is an inorganic compound with the chemical formula NaClO, usually a white or yellowish crystalline powder or liquid. It has strong oxidizing and bleaching properties, and can react with water to form hypochlorous acid and sodium hydroxide. Sodium hypochlorite is lively, unstable and easy to decompose, so it usually needs to be stored in a cool, dry and well ventilated place.

2. sodium hypochlorite production methods

sodium hypochlorite production methods are mainly two: one is the chlor-alkali method, chlorine into the sodium hydroxide solution, the generation of sodium hypochlorite and sodium chloride; the other is the electrolytic method, that is, through the electrolysis of salt solution to generate sodium hydroxide and chlorine, and then chlorine into the sodium hydroxide solution to generate sodium hypochlorite.

3. the safety and environmental protection of sodium hypochlorite

sodium hypochlorite has certain toxicity and corrosiveness, so it is necessary to pay attention to safety during use. At the same time, the production and use of sodium hypochlorite may also produce some pollutants, such as chloride ions, sodium hydroxide, etc. It is necessary to properly treat the production process and the use of wastewater to avoid harm to the environment and the human body.

4. the use of sodium hypochlorite

sodium hypochlorite as an important chemical raw material, widely used in various fields, the following is its main use:

1. Bleach: sodium hypochlorite has strong bleaching, can be used to bleach paper, fabric, cellulose and so on.

2. Disinfectant: Sodium hypochlorite can kill a variety of bacteria, viruses and fungi, so it is widely used as a disinfectant and preservative, such as for drinking water disinfection, medical equipment disinfection.

3. Oxidant: sodium hypochlorite is oxidizing and can be used to oxidize some metal ions, such as iron ions, manganese ions, etc.

In short, sodium hypochlorite is an important raw material for the production of chemicals, with a wide range of properties and uses. It is necessary to pay attention to safety and environmental protection during use to avoid harm to the environment and human body.

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