Potassium permanganate is widely used:

First, it is used in medicine.

anti-inflammatory: potassium permanganate is a strong oxidant, which releases new ecological oxygen when it meets organic matter, and has the function of killing bacteria. Its bactericidal power is extremely strong. Gastric lavage: When you take plant poisoning by mistake in the field, you should gastric lavage as soon as possible to reduce the absorption of toxic substances. The simple method is to gastric lavage with 1: 1111-1: 4111 potassium permanganate solution. Other usage and dosage: external use. 1.1% aqueous solution should be used for wound surface and cavity irrigation; 1.1%-1.2% aqueous solution for gastric lavage; Apply 1.5% solution to gargle; Wash vagina or bath with 1.125% solution, 1.1% solution for cleaning ulcers and abscesses, 1.1% solution for disinfection of fruits, etc., and soak for 5 minutes.

second, it is useful in industry and life. ?

in industry? Used as disinfectant, bleaching agent, etc. In daily life, according to the principle that the contact, friction and collision between potassium permanganate and organic matter will lead to combustion when heat is generated and oxygen is released, one part of sugar and two parts of potassium permanganate are mixed and ground in the middle of dry wood chips. If the weather is dry, the wood chips will burn quickly, with short time and good effect. It is reported that a spoonful of potassium permanganate is poured into the newspaper, and then a few drops of car antifreeze are dropped to knead the newspaper into a ball, which will catch fire within 31 seconds.

potassium permanganate is a conventional additive for purifying water in waterworks. When taking water in the field, add three or four potassium permanganate to 1 liter of water and drink it in 31 minutes.

When you get lost in the snow, you can scatter potassium permanganate particles on the snow, and the purple produced can guide the rescuers. However, colors can only be kept for about two hours.

third, in the experiment.

In the laboratory, Potassium permanganate is used to identify substances because of its strong oxidation and bright color. Acidic potassium permanganate solution is an important reagent for redox titration.

Potassium permanganate is dark purple, slender prismatic crystals or particles with blue metallic luster. Odorless; Contact with some organic substances or easy oxides, easy to explode, soluble in water and alkali liquor, slightly soluble in methanol, acetone and sulfuric acid, with molecular formula of KMnO4 and molecular weight of 158.13411. The melting point is 241°C, which is stable, but contact with flammable materials may cause fire. The substances to be avoided include reducing agents, strong acids, organic materials, flammable materials, peroxides, alcohols and chemically active metals.