Input interpretation
halogens | melting point
Summary
median | -7.3 °C highest | 302 °C (astatine) lowest | -219.6 °C (fluorine) distribution | | (based on 5 values; 1 unavailable)
Entity with missing value
tennessine
Plot
Plot
Melting point rankings
1 | fluorine | -219.6 °C 2 | chlorine | -101.5 °C 3 | bromine | -7.3 °C 4 | iodine | 113.7 °C 5 | astatine | 302 °C (based on 5 values; 1 unavailable)
Unit conversions for median melting point -7.3 °C
265.8 K (kelvins)
19 °F (degrees Fahrenheit)
479 °R (degrees Rankine)
-5.8 °Ré (degrees Réaumur)
3.7 °Rø (degrees Rømer)
Comparison for median melting point -7.3 °C
22 °C below temperature at STP (standard temperature and pressure), using the convention of European and South American natural gas companies (15 °C)
7.3 °C below temperature at STP (standard temperature and pressure), using the International Union of Pure and Applied Chemistry convention (0 °C)
10 °C above temperature of the ice/salt mixture defining the zero point of the Fahrenheit temperature scale (0 °F)
Corresponding quantities
Thermodynamic energy E from E = kT: | 23 meV (millielectronvolts)
Blackbody energy flux Φ from Φ = σT^4: | 283 W/m^2 (watts per square meter)
Approximate luminous exitance from a planar blackbody radiator perpendicular to its surface: | 4.4×10^-25 lx (lux)
Thermodynamic properties
phase at STP | all | gas | liquid | solid melting point | median | -7.3 °C | highest | 302 °C (astatine) | lowest | -219.6 °C (fluorine) | distribution | boiling point | median | 12 °C | highest | 184.3 °C (iodine) | lowest | -188.12 °C (fluorine) | distribution | critical temperature | median | 502 K | highest | 819 K (iodine) | lowest | 144.13 K (fluorine) | distribution | critical pressure | median | 9.166 MPa | highest | 11.7 MPa (iodine) | lowest | 5.172 MPa (fluorine) | distribution | molar heat of fusion | median | 5.8 kJ/mol | highest | 7.76 kJ/mol (iodine) | lowest | 0.26 kJ/mol (fluorine) | distribution | molar heat of vaporization | median | 14.8 kJ/mol | highest | 40 kJ/mol (astatine) | lowest | 3.27 kJ/mol (fluorine) | distribution | specific heat at STP | median | 651 J/(kg K) | highest | 947.3 J/(kg K) (bromine) | lowest | 429 J/(kg K) (iodine) (properties at standard conditions)