<unk>  is the chemical compound<unk> .  In this salt, manganese is in the +7 oxidation state.  The salt is also known as<unk>  of potash."  The<unk>  ion is a strong oxidizing agent.  It dissolves in water to give deep purple solutions, evaporation of which gives prismatic purple-black glistening crystals. It has a sweet taste and is odourless.
Standard enthalpy of formation is ΔfH°solid = -813.4 kJ.mol-1 and standard molar entropy is S°solid = 171.7 J.K-1.mol-1.
Its crystal structure is orthorhombic with constants: a = 9.105, b = 5.720, c = 7.425 (.10-1 nm). Distance between Mn and O atoms in tetrahedral anions is 162.9 pm.
Potassium permanganate
Magnesium peroxide
Sodium monofluorophosphate
Lithium peroxide
Calcium arsenate
Potassium hydroxide
Ammonium hexachloroplatinate
Pyridinium chlorochromate