kJ.mol^-1

g/cm3, solid

rhombic needle crystals or powder with rich violet-brown or dark purple metallic sheen, become steel-gray in storage;
magenta–rose in solution

8.0 g/100 ml at 15 °C in water

°C decomp.

J.K^-1.mol^-1

Oxidant (O), Harmful (Xn), Dangerous for the environment (N)