Input interpretation
mineral acids | melting point
Summary
median | 3 °C highest | 196 °C (chromic acid) lowest | -112 °C (perchloric acid) distribution | | (based on 17 values; 7 unavailable)
Entities with missing values
hydrazoic acid | nitrous acid | hypochlorous acid | aqueous nitric acid | sulfurous acid | hypobromous acid | hypoiodous acid (total: 7)
Distribution plots
(melting point in degrees Celsius)
Melting point rankings
1 | perchloric acid | -112 °C 2 | hydrogen sulfide | -85 °C 3 | hydroiodic acid | -50 °C 4 | nitric acid | -41.6 °C 5 | hydrofluoric acid | -36.7 °C 6 | hydrochloric acid | -30 °C 7 | aqueous perchloric acid | -18 °C 8 | hydrobromic acid | -11 °C 9 | aqueous sulfuric acid | 3 °C 10 | sulfuric acid | 10.371 °C 11 | phosphoric acid | 42.4 °C 12 | pyrophosphoric acid | 61 °C 13 | phosphorous acid | 74 °C 14 | iodic acid | 110 °C 15 | periodic acid | 122 °C 16 | boric acid | 160 °C 17 | chromic acid | 196 °C (based on 17 values; 7 unavailable)
Unit conversions for median melting point 3 °C
276.2 K (kelvins)
37.4 °F (degrees Fahrenheit)
497.1 °R (degrees Rankine)
2.4 °Ré (degrees Réaumur)
9.1 °Rø (degrees Rømer)
Comparison for median melting point 3 °C
12.6 °C below temperature at STP (standard temperature and pressure), using the US customary convention (60 °F)
12 °C below temperature at STP (standard temperature and pressure), using the convention of European and South American natural gas companies (15 °C)
3 °C above temperature at STP (standard temperature and pressure), using the International Union of Pure and Applied Chemistry convention (0 °C)
Corresponding quantities
Thermodynamic energy E from E = kT: | 24 meV (millielectronvolts)
Blackbody energy flux Φ from Φ = σT^4: | 330 W/m^2 (watts per square meter)
Approximate luminous exitance from a planar blackbody radiator perpendicular to its surface: | 6.7×10^-24 lx (lux)