Characteristic:
Appearance and properties:Black or dark brown crystalline or amorphous powder.
Relative density: 5.03
Melting point(℃): 535 (decomposition)
Concentration: Pure
Solubility: insoluble in water, insoluble in nitric acid. Hazard characteristics:
ITTA-DGR UN 1479 OXIDIZING SOLID,N.O.S.(MANGANESE(IV)OXIDE),5.1,II