Input interpretation
sulfur selenium | melting point
Results
sulfur | 115.21 °C (degrees Celsius) selenium | 221 °C (degrees Celsius)
sulfur | melting point | 115.21 °C (degrees Celsius) (value given for monoclinic, beta form) selenium | melting point | 221 °C (degrees Celsius) (value given for hexagonal, gray form)
Plot
Plot
Thermodynamic properties
| sulfur | selenium phase at STP | solid | solid melting point | 115.21 °C | 221 °C boiling point | 444.72 °C | 685 °C critical temperature | 1314 K | 1766 K critical pressure | 20.7 MPa | 27.2 MPa molar heat of fusion | 1.73 kJ/mol | 5.4 kJ/mol molar heat of vaporization | 9.8 kJ/mol | 26 kJ/mol specific heat at STP | 705 J/(kg K) | 321.2 J/(kg K) (properties at standard conditions)