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Appearance and properties: dark grey or black powder
Density: 5.06 g/mL at 25 degree C (lit.)
Melting point: 2375 degrees C
The boiling point of 450 degrees: C, sublimes
Stability: Stable., Incompatible, with, oxidizing, agents, acids.
Storage conditions: warehouse ventilation, low temperature drying
Steam pressure: 12600mmHg at 25 degrees C
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