Permanganate, ion MnOfour-。Valence- 1, strong in acid solutionOxidizabilityThe alkaline solution also has a certain degree of oxidation, and it is purple red in the solution.The common ones arepotassium permanganate（KMnO₄）。
potassium permanganateThe oxidation of can be shown in both acid and alkaline, but it is more obvious in acid.
Permanganate
For example,olefinInCarbon carbon double bondIn the cold, dilute alkaline potassium permanganate aqueous solutionglycol(Its two hydroxyl groups are formed on the same side of the double bond), the adjacent diol is further oxidized to ketone or acid, and the yield is generally not high;If concentrated, hot or acidic potassium permanganate is used for oxidation, the reaction conditions are relatively strong, and the carbon carbon double bond breaks, forming ketone, acid or a mixture of ketone and acid. The structure of the product depends on the hydrogen content on the double bondalkaneSubstitution, such as R2C=, RCH=and H2C=in the double bond are oxidized to ketone, acid andcarbon dioxide。
Compounds containing permanganate are collectively referred to aspermanganate。
