Propane (data page)

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This page provides supplementary chemical data on propane.

Structure and properties
Dielectric constant (fluid) 1.6 ε0 at 0 °C
Magnetic susceptibility −40

Thermodynamic properties

Phase behavior
Triple point 85.47 K (−187.68 °C), 0.000169 Pa[1]
Critical point 369.522 K (96.672 °C), 42.4924 bar
Std enthalpy change
of fusion, ΔfusHo		 79.96 J/g
Std entropy change
of fusion, ΔfusSo		 ? J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo		 24.545 kJ/mol
Std entropy change
of vaporization, ΔvapSo		 ? J/(mol·K)
Solid properties
Std enthalpy change
of formation, ΔfHosolid		 −103.85[2] kJ/mol
Standard molar entropy,
Sosolid		 ? J/(mol K)
Heat capacity, cp ? J/(mol K)
Liquid properties
Std enthalpy change
of formation, ΔfHoliquid		 −118.910 kJ/mol
Standard molar entropy,
Soliquid		 171.0 J/(mol K)
Heat capacity, cp 98.36 J/(mol K)
Gas properties
Std enthalpy change
of formation, ΔfHogas		 −104.7 kJ/mol
Standard molar entropy,
Sogas		 269.91 J/(mol K)
Enthalpy of combustion, ΔcHo −2220.0 kJ/mol
Heat capacity, cp 73.60 J/(mol K)
van der Waals' constants[3] a = 877.88 L2 kPa/mol2
b = 0.08445 liter per mole

Density of liquid and gas

Propane is highly temperature dependent.[4] The density of liquid and gaseous propane are given on the next image.

Density-temperature curves for liquid and gaseous propane

Vapor pressure of liquid

P in mm Hg11040100400760152038007600152003040045600
T in °C−128.9−108.5−92.4−79.6−55.6−42.1−25.61.425.658.194.8 —


Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.

log of propane vapor pressure. Uses formula: from Lange's Handbook of Chemistry, 10th ed.

Spectral data

UV-Vis
λmax ? nm
Extinction coefficient, ε ?
IR
Major absorption bands ? cm−1
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments		  

Material Safety Data Sheet

References

External links

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