Input interpretation
![neptunium | melting point](../image_source/5ec4120fb32d873361423497dfbd159c.png)
neptunium | melting point
Result
![644 °C (degrees Celsius)](../image_source/ba5186e460602b745c2d68c3fa208ba9.png)
644 °C (degrees Celsius)
Unit conversions
![917 K (kelvins)](../image_source/e8abdb8079e046709e6a89a3cdd60ed5.png)
917 K (kelvins)
![1190 °F (degrees Fahrenheit)](../image_source/c5f7444022e988b494bc922d6456bf1a.png)
1190 °F (degrees Fahrenheit)
![1650 °R (degrees Rankine)](../image_source/2f592d43a26cd76eed6f85797781ef9c.png)
1650 °R (degrees Rankine)
![515 °Ré (degrees Réaumur)](../image_source/ee39a15807d2401b5523053dafa03ec2.png)
515 °Ré (degrees Réaumur)
![346 °Rø (degrees Rømer)](../image_source/57b29a49898c24d3a34610cdc1e39716.png)
346 °Rø (degrees Rømer)
Comparisons as temperature
![(50 to 700) °C below typical temperature of magma (700 to 1300 °C)](../image_source/7cb42e8cfb712e03fc7191e4779e42d6.png)
(50 to 700) °C below typical temperature of magma (700 to 1300 °C)
![16 °C below melting point of aluminum (660.32 °C)](../image_source/b61743605fddf80bf76d7fc7e9a7ba26.png)
16 °C below melting point of aluminum (660.32 °C)
![160 °C above typical temperature of an electric oven during self-cleaning (900 °F)](../image_source/055d6e8c3c16dadaa0be3dee76b1b806.png)
160 °C above typical temperature of an electric oven during self-cleaning (900 °F)
Corresponding quantities
![Thermodynamic energy E from E = kT: | 79 meV (millielectronvolts)](../image_source/82613b1c50be110a49643c25d4cc1f4d.png)
Thermodynamic energy E from E = kT: | 79 meV (millielectronvolts)
![Blackbody energy flux Φ from Φ = σT^4: | 40121 W/m^2 (watts per square meter)](../image_source/817aea4b1db9685937b32af1c640e713.png)
Blackbody energy flux Φ from Φ = σT^4: | 40121 W/m^2 (watts per square meter)
![Approximate luminous exitance from a planar blackbody radiator perpendicular to its surface: | 1 lx (lux)](../image_source/4766f58263d1fd2e2dff05786da7e580.png)
Approximate luminous exitance from a planar blackbody radiator perpendicular to its surface: | 1 lx (lux)
Thermodynamic properties
![phase at STP | solid melting point | 644 °C (rank: 67th) boiling point | 4000 °C (rank: 13th) molar heat of fusion | 10 kJ/mol (rank: 47th) molar heat of vaporization | 335 kJ/mol (rank: 32nd) (properties at standard conditions)](../image_source/8c32a6c90b0cd40c7c8a9d389b85998f.png)
phase at STP | solid melting point | 644 °C (rank: 67th) boiling point | 4000 °C (rank: 13th) molar heat of fusion | 10 kJ/mol (rank: 47th) molar heat of vaporization | 335 kJ/mol (rank: 32nd) (properties at standard conditions)