Input interpretation
promethium | melting point
Result
1100 °C (degrees Celsius)
Unit conversions
1400 K (kelvins)
2000 °F (degrees Fahrenheit)
2500 °R (degrees Rankine)
880 °Ré (degrees Réaumur)
580 °Rø (degrees Rømer)
Comparisons as temperature
200 °C below to 400 °C above typical temperature of magma (700 to 1300 °C)
200 °C above large log fire temperature (1170 K)
Blackbody information
perceived color | peak wavelength | 2.1 µm (micrometers) peak frequency | 81 THz (terahertz)
Corresponding quantities
Thermodynamic energy E from E = kT: | 12 ceV (centielectronvolts)
Blackbody energy flux Φ from Φ = σT^4: | 201597 W/m^2 (watts per square meter)
Approximate luminous exitance from a planar blackbody radiator perpendicular to its surface: | 5464 lx (lux)
Thermodynamic properties
phase at STP | solid melting point | 1100 °C (rank: 42nd) boiling point | 3000 °C (rank: 33rd) molar heat of fusion | 7.7 kJ/mol (rank: 55th) molar heat of vaporization | 290 kJ/mol (rank: 43rd) (properties at standard conditions)