permanganatepərˈmæŋ gəˌneɪt
permanganate
English Definitions:
permanganate (noun)
a dark purple salt of permanganic acid; in water solution it is used as a disinfectant and antiseptic
permanganate (Noun)
any salt of permanganic acid, they are purple crystalline solids, mostly soluble in water; they are strong oxidizing agents
permanganate (Noun)
potassium permanganate
Permanganate
A permanganate is the general name for a chemical compound containing the manganate ion,. Because manganese is in the +7 oxidation state, the permanganate ion is a strong oxidizing agent. The ion has tetrahedral geometry. Permanganate solutions are purple in color and are stable in neutral or slightly alkaline media.The exact chemical reaction is dependent upon the organic contaminants present and the oxidant utilized. For example, trichloroethene is oxidized by sodium permanganate to form carbon dioxide, manganese dioxide, sodium ions, hydronium ion, and chloride ions In an acidic solution, permanganate is reduced to the colourless +2 oxidation state of the manganese ion.+−−2+ In a strongly basic solution, permanganate is reduced to the green +6 oxidation state of the manganate ion, MnO42−.−−2− In a neutral medium however, it gets reduced to the brown +4 oxidation state of manganese dioxide MnO2.−−−
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