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Potassium permanganate



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Product details:

- Product Name: Potassium permanganate

- Formulas : KMnO4

- Chemical composition : China-BP2000-50kg

- Product Type: Chemical for mining

Product description :

Potassium permanganate is an inorganic chemical compound with the formula KMnO4. It is a salt consisting of K+ and MnO4 ions. Formerly known as permanganate of potash or Condy++++s crystals, it is a strong oxidizing agent. It dissolves in water to give intensely purple solutions, the evaporation of which leaves prismatic purplish-black glistening crystals.[1] In 2000, worldwide production was estimated at 30,000 tonnes.[2] In this compound, manganese is in the +7 oxidation state.

Uses

Almost all applications of potassium permanganate exploit its oxidizing properties.[2] As a strong oxidant that does not generate toxic byproducts, KMnO4 has many niche uses.

Potassium permanganate is one of the principal chemicals used in the film and television industries to "age" props and set dressings. Its oxidising effects create "hundred year old" or "ancient" looks on hessian cloth, ropes, timber and glass.[16] It was used on props and sets in films such as "Troy", "300" and "Indiana Jones".[citation needed]

Disinfectant and water treatment

As an oxidant, potassium permanganate can act as an antiseptic. For example, dilute solutions are used to treat canker sores (ulcers), disinfectant for the hands and treatment for mild pompholyx, dermatitis,[17][18] and fungal infections of the hands or feet.[19] Potassium permanganate is used extensively in the water treatment industry. It is used as a regeneration chemical to remove iron and hydrogen sulfide (rotten egg smell) from well water via a "Manganese Greensand" Filter. "Pot-Perm" is also obtainable at pool supply stores, is used additionally to treat waste water. Historically it was used to disinfect drinking water.[20][21] It currently finds application in the control of nuisance organisms such as Zebra mussels in fresh water collection and treatment systems.[22]

Biomedical uses

Related to the use of KMnO4 for water treatment, this salt is often employed as a specialized disinfectant for treating human and animal ailments. In histology, it is used to bleach melanin which obscures tissue detail. Potassium permanganate can also be used to differentiate amyloid AA from other types of amyloid pathologically deposited in body tissues. Incubation of fixed tissue with potassium permanganate will prevent amyloid AA from staining with congo red whereas other types of amyloid are unaffected.[23][24] Permanganate washes were once used to treat gonorrhea[25] and are still used to treat candidiasis.[26] It can be used to inactivate the poison strychnine.

Organic synthesis

Aside from its use in water treatment, the other major application of KMnO4 is as a reagent for the synthesis of organic compounds.[27] Significant amounts are required for the synthesis of ascorbic acid, chloramphenicol, saccharin, isonicotinic acid, and pyrazinoic acid.[2]

Fruit preservation

Addition of potassium permanganate substrate to banana shipments adsorbs the ethylene and doubles the fruit ripening period (see banana entry for more details).

Survival kits

Potassium permanganate is typically included in survival kits: as a fire starter,[11] water sterilizer and for creating distress signals on snow.[28]


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