In the production of chemicals, it is widely used as oxidant, such as sugar, vitamin C, isoniazid and benzoic acid.
Used as antiseptic, disinfectant, deodorant and antidote in medicine;
In water purification and wastewater treatment, it is used as a water treatment agent to oxidize various pollutants such as hydrogen sulfide, phenol, iron and manganese and organic and inorganic pollutants, control odor and decolorize;
It is also used as bleaching agent, adsorbent, colorant and disinfectant.
Extended data
1, physical and chemical properties
Purple crystalline solid, soluble in water and alkali solution, slightly soluble in methanol, acetone and sulfuric acid, with density of 1.0 1g/ml at 25℃ and melting point of 240℃ and 20? Under the condition of C, 100mL water can dissolve 6.4 g potassium permanganate. Stable, but contact with flammable materials may cause fire.
2. Health hazards
Potassium permanganate is toxic and corrosive. Inhalation can cause respiratory tract injury. Splash into eyes, irritate conjunctiva and even cause burns. It is brown and black after irritating the skin. Concentrated solutions or crystals are corrosive to skin and irritating to tissues.
It will seriously corrode the oral cavity and digestive tract after oral administration. Burning sensation in mouth, upper abdominal pain, nausea, vomiting, oropharyngeal swelling, etc. In the case of large oral dose, the oral mucosa was dark brown, swollen and erosive, gastric bleeding, liver and kidney damage, severe abdominal pain, vomiting, bloody stool, shock, and finally died of circulatory failure. The lethal dose of pure potassium permanganate is about 65438±00g g.
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