Bismuth selenide
Compounds
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Bismuth selenide is a gray compound of bismuth and selenium also known as bismuth(III) selenide. Wikipedia
Formula: Bi2Se3
Crystal structure: rhombohedral
Melting point: 710 °C (1,310 °F; 983 K)
Density: 6.82 g/cm3
Molar mass: 654.8 g/mol
Solubility: insoluble in organic solvents; soluble in strong acids
Std enthalpy of formation (ΔfH⦵298): -140 kJ/mol