Se
Selenium
Z 34 78.971 g/molOther Nonmetal
Phase
Temperature
273.2 K(0.0 °C32.0 °F)
Pressure
101,325 Pa(1 atm1.013 bar760 mmHg)
Density (STP)
4.81 g/cm³
Current Phase
Solid
Melting Point
493.7 K (220.5 °C428.9 °F)
Boiling Point
958.0 K (684.9 °C1,264.7 °F)
Critical Point
1,766.0 K (1,492.9 °C2,719.1 °F)2.72e7 Pa (268.4 atm272 bar204,000 mmHg)
Heating Curve
Added Heat
0.0kJ/moleV
Current Phase
Solid
Temperature
0.0 K(-273.1 °C-459.7 °F)
Heat of Fusion
6.69 kJ/mol0.0693 eV
Heat of Vaporization
95.48 kJ/mol0.9896 eV
Specific Heat
0.3163 J/(g·K)
Thermal Conductivity
0.519 W/(m·K)