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[Chemical Knowledge]：Properties and uses of bleaching powder

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Bleaching powder is an important raw material for chemical production, which is widely used in different industrial fields. This article will detail the properties and uses of bleaching powder. The nature of

1. bleaching powder

bleaching powder is a white powder, the main components are calcium hydroxide and calcium hypochlorite. It has the characteristics of strong oxidation, alkaline, instability and water solubility.

1. strong oxidizing
calcium hypochlorite in
bleaching powder has strong oxidation, which can effectively oxidize organic substances and decompose them into colorless substances, so as to achieve the effect of bleaching.

2. alkaline

bleaching powder in calcium hydroxide to make it alkaline, can neutralize acidic substances, has good decontamination ability.

3. Instability

bleaching powder will gradually decompose and fail during storage, so it should be stored in a dry and cool place to avoid direct sunlight and high temperature.

4. water soluble

bleaching powder soluble in water, the formation of hypochlorous acid and calcium hydroxide solution, easy to use.

the use of 2. bleaching powder

bleaching powder as an important chemical raw material, has a wide range of applications in different fields.

1. Textile industry

In the textile industry, bleaching powder is mainly used to bleach fabrics to remove impurities and color unevenness in the dyeing process, and improve the whiteness and purity of fabrics. At the same time, bleaching powder can also be used to remove oil and stains on the fabric.

2. Paper industry

In the paper industry, bleaching powder is used to bleach pulp, improve the whiteness and brightness of paper, and improve the quality of paper. In addition, bleaching powder can also be used to remove impurities and odors in the paper.

3. Water treatment

bleaching powder can be used as a disinfectant in water treatment, effectively kill bacteria, viruses and algae in the water and other microorganisms, to ensure the safety and health of water quality. At the same time, the bleaching powder can also adjust the pH of the water and remove the iron and manganese plasma in the water.

4. chemical production

in chemical production, bleaching powder can be used as an oxidant, reducing agent, acidifying agent, etc. for different chemical reactions to promote the reaction and the generation of products.

In short, bleaching powder as an important chemical production raw materials, has a wide range of uses and applications. When using bleaching powder, it is necessary to choose the appropriate concentration and method of use according to the specific usage and requirements, and pay attention to the safety of storage and use.

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