0.00062 G/100 CC WATER AT 18 DEG C; INSOL IN NITRIC ACID; SOL IN ACIDS WITH EVOLUTION OF HYDROGEN SULFIDE
Flash Point:
°C
Color:
Colorless hexagonal crystals when pure; usually gray to brownish-black lumps, rods or granular powder; trimorphic with transition points @ 135 and 325 deg C Dark-brown or black metallic pieces, sticks, or granules