| IUPAC name
| Other names
|Molar mass||375.198 g/mol|
|Appearance||Dark violet-brown crystals|
|Density||3.77 g/cm3 (20 °C)|
|Melting point||200 °C (392 °F; 473 K) Decomposes|
|62.5 g/100 ml (20 °C)|
|Solubility||Reacts with alcohols|
|Vapor pressure||~0 mmHg|
|Safety data sheet||HiMedia|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Barium permanganate is a chemical compound, with the formula Ba(MnO4)2. It is often used to prepare more exotic permangante salts, by double displacement reaction with their sulfate salt.
Barium permangante is a dark purple or purple-brown solid, soluble in water.
Barium permanganate is sold by various lab suppliers.
Barium permanganate may be produced by disproportionation of barium manganate in a mildly acidic solution.
Preparations relying on aqueous reactions of barium manganate are extremely slow process due to the low solubility of the manganate.
- Make permanganic acid
- Make ammonium permanganate
Barium permanganate is corrosive and a strong oxidizer. Avoid contact with combustible materials and acids.
Barium permanganate should be kept in PE or glass containers, with a good lid.
Addition of hydrogen peroxide will cause it to break down to manganese dioxide and barium oxide/hydroxide. Addition of sulfuric acid or a source of sulfate will precipitate barium sulfate, which is non-toxic, and can be dumped in trash.