Input interpretation
![selenium allotropes | freezing point](../image_source/5725b4bd392e971bdb356047e060c63a.png)
selenium allotropes | freezing point
Results
![black selenium | (data not available) gray selenium | 217 °C (degrees Celsius) red selenium | (data not available)](../image_source/9e249a5acc501d4459ae19f5cb001190.png)
black selenium | (data not available) gray selenium | 217 °C (degrees Celsius) red selenium | (data not available)
![selenium allotropes | freezing point | 217 °C (degrees Celsius) (median) (based on 1 values; 2 unavailable)](../image_source/d7604f3b41953096ebf76a29e2976d9a.png)
selenium allotropes | freezing point | 217 °C (degrees Celsius) (median) (based on 1 values; 2 unavailable)
Unit conversions for median freezing point 217 °C
![490.2 K (kelvins)](../image_source/1ffb09d04f3299136b57412dee87eb6d.png)
490.2 K (kelvins)
![422.6 °F (degrees Fahrenheit)](../image_source/2b30e408a95b043f8a16e8562268d285.png)
422.6 °F (degrees Fahrenheit)
![882.3 °R (degrees Rankine)](../image_source/0fd13bd0dce28e23a92ccb8b83e7d099.png)
882.3 °R (degrees Rankine)
![173.6 °Ré (degrees Réaumur)](../image_source/b8b56a5daa37c6b93bb8162b0ba26a2e.png)
173.6 °Ré (degrees Réaumur)
![121.4 °Rø (degrees Rømer)](../image_source/8cbe674bb09c87a8b9e0d3f725daef48.png)
121.4 °Rø (degrees Rømer)
Comparison for median freezing point 217 °C
![15.78 °C below autoignition temperature of book paper in Ray Bradbury's famous novel (451 °F)](../image_source/0cda51809302ce2446d6b562eb5eec08.png)
15.78 °C below autoignition temperature of book paper in Ray Bradbury's famous novel (451 °F)
![(1 to 29) °C below autoignition temperature of paper (218 to 246 °C)](../image_source/02b895b8ec10da0b5acc8daa38f8a6b6.png)
(1 to 29) °C below autoignition temperature of paper (218 to 246 °C)
![90 °C above hottest temperature of a Concorde nose tip (127 °C)](../image_source/d32c9f444a4ec939b654e1a648327bd7.png)
90 °C above hottest temperature of a Concorde nose tip (127 °C)
Corresponding quantities
![Thermodynamic energy E from E = kT: | 42 meV (millielectronvolts)](../image_source/76349070613de4aa717119aefc4ca48a.png)
Thermodynamic energy E from E = kT: | 42 meV (millielectronvolts)
![Blackbody energy flux Φ from Φ = σT^4: | 3273 W/m^2 (watts per square meter)](../image_source/5742b2bfcda6b5ee6569d343c2f15baf.png)
Blackbody energy flux Φ from Φ = σT^4: | 3273 W/m^2 (watts per square meter)
![Approximate luminous exitance from a planar blackbody radiator perpendicular to its surface: | 6.1×10^-10 lx (lux)](../image_source/34f0ddbc4022dfcddaab48f4aec26682.png)
Approximate luminous exitance from a planar blackbody radiator perpendicular to its surface: | 6.1×10^-10 lx (lux)
Nearest corresponding gas marks for median freezing point 217 °C (degrees Celsius)
![| temperature | usage gas mark 7 | 220 °C | United Kingdom stufe 4 | 220 °C | Germany (actual measurements may vary)](../image_source/26692d276888971701a681d86b3983cc.png)
| temperature | usage gas mark 7 | 220 °C | United Kingdom stufe 4 | 220 °C | Germany (actual measurements may vary)