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Permanganate

Last updated: June 16, 2017

What Does Permanganate Mean?

Permanganate is a chemical compound that contains the manganate VII ion (MnO4). Because manganese has an oxidation state of +7, permanganate is considered a very strong agent for oxidation.

Permanganate solutions are typically purple and are stable in slightly alkaline or neutral environments.

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Corrosionpedia Explains Permanganate

Permanganate is odorless and usually has an astringent and sweetish taste. With its chemical composition, permanganate is compatible with almost all metals as well as synthetic matter. Permanganate has no corrosive effect in alkaline and neutral solutions. However, chloride corrosion in metals can hasten when permanganate is present in the solution. Fibers and natural rubbers are usually incompatible; therefore the pH of the solution must be monitored regularly as it can change very frequently.

To handle permanganate solutions safely and effectively, the containers should be protected against damage. Appropriate eye protection should be present regardless of the form of permanganate being handled. Respirators should also be on hand.

Permanganate is stable and remains so when stored in cool, dry and tightly closed containers. The handling area should have wooden floors to prevent harmful reactions or incompatibility.

Permanganate should not come in contact with peroxides as well as readily oxidizable and combustible materials. Although permanganate is not actually combustible, it can support combustion and it decomposes when subjected to intense heat.

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