Propane (data page)

This page provides supplementary chemical data on propane.

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

Phase behavior
Triple point	85.47 K (−187.68 °C), 0.0001 Pa
Critical point	369.522 K (96.672 °C), 42.4924 bar
Std enthalpy change of fusion, Δ_fusH^o	79.96 J/g
Std entropy change of fusion, Δ_fusS^o	? J/(mol·K)
Std enthalpy change of vaporization, Δ_vapH^o	24.545 kJ/mol
Std entropy change of vaporization, Δ_vapS^o	? J/(mol·K)
Solid properties
Std enthalpy change of formation, Δ_fH^o_solid	−103.85^[1] kJ/mol
Standard molar entropy, S^o_solid	? J/(mol K)
Heat capacity, c_p	? J/(mol K)
Liquid properties
Std enthalpy change of formation, Δ_fH^o_liquid	−118.910 kJ/mol
Standard molar entropy, S^o_liquid	171.0 J/(mol K)
Heat capacity, c_p	98.36 J/(mol K)
Gas properties
Std enthalpy change of formation, Δ_fH^o_gas	−104.7 kJ/mol
Standard molar entropy, S^o_gas	269.91 J/(mol K)
Enthalpy of combustion, Δ_cH^o	−2220.0 kJ/mol
Heat capacity, c_p	73.60 J/(mol K)
van der Waals' constants^[2]	a = 877.88 L² kPa/mol² b = 0.08445 liter per mole

P in mm Hg		1	10	40	100	400	760	1520	3800	7600	15200	30400	45600
T in °C		−128.9	−108.5	−92.4	−79.6	−55.6	−42.1	−25.6	1.4	25.6	58.1	94.8	—

Structure and properties