Acidic potassium permanganate

We know that potassium permanganate is a relatively strong oxidant. In addition to its oxidizing effect, it also has many uses in the medical field. It has a good anti-inflammatory and bactericidal effect. It can effectively kill various bacteria, and has a good killing effect on fungi and Mycobacterium tuberculosis. It also has a good killing effect on hepatitis B virus. When using potassium permanganate solution, be sure to mix the solution in a certain ratio.

Potassium permanganate is one of the strongest oxidants. The organic substances that can react with it have the following characteristics: containing carbon-carbon double bonds, carbon-carbon triple bonds, hydroxyl groups, aldehyde groups, and benzene homologues.

1. Organic substances that cause acidic potassium permanganate solution to fade include: (1) Unsaturated hydrocarbons: for example, hydrocarbons containing carbon-carbon double bonds or carbon-carbon triple bonds. (2) Benzene homologues: toluene, xylene, ethylbenzene, etc.

(3) Derivatives of unsaturated hydrocarbons: some halogenated hydrocarbons containing carbon-carbon double bonds or carbon-carbon triple bonds, etc. (4) Some alcohol organic substances: such as propylene alcohol.

(5) Phenols: such as phenol. (6) Organic substances containing aldehyde groups: aldehydes, formic acid, formic esters, and formates. (7) Petroleum products (pyrolysis gas, cracked gas, cracked petroleum). (8) Natural rubber.

The role of potassium permanganate

Potassium permanganate is a chemical substance, but it is used in many places in life. It is used in disinfectants, the kind used at home, for cleaning the kitchen and fruits. It is also used to treat some diseases, such as gastroenteritis and diarrhea.

Potassium permanganate exhibits a bactericidal effect by oxidizing the active groups of bacteria. It can effectively kill various bacterial reproductive bodies, fungi, and Mycobacterium tuberculosis; it can also inactivate hepatitis B virus and spores, but it takes a longer time to act on the spores.

Heating organic matter can accelerate the oxidation reaction under acidic or alkaline conditions. The oxidation reaction is different under different pH conditions. In acidic solution, it is reduced to colorless divalent manganese compound; in neutral or alkaline solution, it is reduced to brown manganese dioxide and protein complex precipitate.

Low concentrations have antibacterial, astringent, hemostatic and deodorizing effects. High concentrations are irritating and corrosive. Its antibacterial effect is stronger than hydrogen peroxide. Clinically, it is mainly used for acute dermatitis or acute eczema (especially when accompanied by secondary infection), cleaning of ulcers or abscesses, gastric lavage in case of poisoning by oral morphine, opium, strychnine or organic poisons, and first aid treatment of snake bites.

Accidental ingestion of potassium permanganate solution may cause a series of gastrointestinal irritation symptoms, such as burning sensation in the oropharynx, swelling, nausea, vomiting, stomach pain, etc. In severe cases, difficulty in speaking, swallowing and breathing may occur, and proteinuria may also occur. The lethal dose is 10g. The solution should be freshly prepared, as it will become ineffective after a short period of time.

However, there are some taboos, that is, it cannot be placed together with reducing agents, such as glycerin, iodine tincture, various sugar mixtures, etc., because it may cause an explosion. Also, if the concentration is too high, be sure to keep it away from the skin as it will corrode the skin.

A 0.1% solution is commonly used for oral administration to treat atony of the forestomach in cattle and sheep, acute gastroenteritis and diarrhea in horses and other animals. A 0.01% solution is prepared for young chicks to drink, and a 0.1% solution can be used externally to wash mucous membranes and skin wounds, ulcers, etc.