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[Chemical Knowledge]：Properties and Uses of Potassium Peroxide

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Potassium peroxide is an inorganic compound with the chemical formula KO2, which belongs to the class of peroxides. In the field of chemical production raw materials, potassium peroxide has many unique properties and a wide range of uses. This article will detail the properties and uses of potassium peroxide.

1. properties of potassium peroxide

1. physical properties: potassium peroxide is yellow to orange yellow crystalline powder, hygroscopic, density of about 2.18 g/cm ³. Potassium peroxide has a high melting point, about 460 ℃, but it will decompose rapidly in water.
2. Chemical properties: Potassium peroxide is a strong oxidant with high reactivity. It reacts with water to produce potassium hydroxide and oxygen, and the reaction equation is: 2KO2 2H2O → 2KOH O2 ↑. In addition, potassium peroxide can also react with acids, metal salts and many other substances.

2. the use of potassium peroxide

1. chemical production: potassium peroxide as a strong oxidant, widely used in chemical production. It can be used to oxidize various organic compounds, such as alcohols, aldehydes, ketones, etc., to generate the corresponding carboxylic acids or esters. In addition, potassium peroxide can also be used to prepare oxidants such as hydrogen peroxide and ozone.
2. Bleaching agent: Potassium peroxide has a bleaching effect and can be used to bleach paper, fabrics, etc. Compared with chlorine bleach, the product bleached by potassium peroxide has no chlorine residue and is environmentally friendly.
3. Disinfectant: potassium peroxide can be used to disinfect drinking water, swimming pool water, etc. It is decomposed in the water to generate oxygen and potassium hydroxide has the effect of sterilization and disinfection.
4. Rocket Propellants: The gas produced by the reaction of potassium peroxide with certain metal salts can be used in rocket propellants. For example, oxygen and nitrogen produced by the reaction of potassium peroxide with sodium nitrate can be used to propel rocket launches.

3. use precautions

1. Potassium peroxide has strong oxidizing properties and should be stored in a dry and cool place, away from open flames and heat sources.
2. When using potassium peroxide for chemical experiments or industrial production, you should strictly abide by the operating procedures, wear protective equipment, and avoid contact with skin and eyes.
3. Potassium peroxide in water will quickly decompose to produce oxygen, should avoid contact with water. During storage and transportation, ensure that the packaging is tight to prevent moisture.

In short, potassium peroxide has a wide range of uses in the field of chemical production raw materials, but due to its strong oxidation and reactivity, it is necessary to strictly abide by the operating procedures and safety measures during use. By understanding the nature and use of potassium peroxide, we can better grasp its application in chemical production, improve production efficiency and product quality.

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