Potassium permanganate is an inorganic compound with the chemical formula KMnO4 and has a blackish-purple elongated prismatic crystal or granular appearance with a metallic luster. It is a strong oxidizing agent, soluble in water, and reduced in case of ethanol. The molecular weight of potassium permanganate is 158.034, the density is 2.7 g/cm³, and the melting point is 240 °C. The solubility of potassium permanganate in water is 6.38 g/100 mL (20°C).

Uses of Potassium Permanganate

1. Disinfectant: Potassium permanganate has a strong bactericidal ability and is often used for disinfection and sterilization, especially in medical, food processing and water supply systems.

2. Water treatment: In the water treatment process, potassium permanganate is used to oxidize organic matter and reducing substances, thereby purifying water quality.

3. Oxidant: Due to its strong oxidizing properties, potassium permanganate is commonly used as an oxidant in laboratories and industries, and participates in a variety of chemical reactions.

4. Bleach: In the textile and paper industries, potassium permanganate is used as a bleach to help remove pigments from materials.

5. Toxic gas absorber: It can absorb certain harmful gases, such as hydrogen sulfide, for air purification.

6. Carbon dioxide refinement: In industry, potassium permanganate is used to prepare high-purity carbon dioxide.

7. Medicinal uses: In the field of medicine, potassium permanganate is used to treat certain skin diseases such as fungal infections.

8. Other applications: In addition to the above uses, potassium permanganate may also be used in other industrial processes, such as chemical analysis, wood preservation, etc.