what is the name for the chemical formula of MnO4-
A permanganate is the general name for a chemical compound containing the manganate(VII) ion, (MnO 4 â).Because manganese is in the +7 oxidation state, the permanganate(VII) ion is a strong oxidizing agent. The ion has tetrahedral geometry. H+ + MnO 4 â + 5 e â â Mn 2+ + 4 H 2 O. In a strongly basic solution, permanganate(VII) is reduced to the green +6 oxidation state of the manganate ion, MnO 4 2â .