Propane (data page)

This page provides supplementary chemical data on propane.

Structure and properties[edit]

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

Thermodynamic properties[edit]

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

Density of liquid and gas[edit]

Propane is highly temperature dependent.^[3] The density of liquid and gaseous propane are given on the next image.

Vapor pressure of liquid[edit]

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	—

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

**log of propane vapor pressure**. Uses formula: $\scriptstyle \log _{10}P_{mmHg}=6.82973-{\frac {813.20}{248.00+T}}$ from *Lange's Handbook of Chemistry*, 10th ed.

Spectral data[edit]

UV-Vis
λ_max	? 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[edit]

Propane does not have health effects other than the danger of frostbite or asphyxiation. The National Propane Gas Association has a generic MSDS available online here. (Issued 1996)

MSDS from Suburban Propane, L.P dated 5/2013 in the SDSdata.org database

This box:

Except where noted otherwise, data relate to Standard temperature and pressure.
Reliability of data general note.

References[edit]

^ Himmelblau. Basic Principles and Calculations in Chemical Engineering. Pearson. 2012. Print. Pg. 852.
^ Lange's Handbook of Chemistry 10th ed, pp 1522–1524
^ Zivenko, Oleksiy (2019). "LPG Accounting Specificity During ITS Storage and Transportation". Measuring Equipment and Metrology. 80 (3): 21–27. doi:10.23939/istcmtm2019.03.021. ISSN 0368-6418. S2CID 211776025.

External links[edit]

Physical and Chemical Properties of Propane

[1] Himmelblau. Basic Principles and Calculations in Chemical Engineering. Pearson. 2012. Print. Pg. 852.

[lange1522-2] Lange's Handbook of Chemistry 10th ed, pp 1522–1524

[3] Zivenko, Oleksiy (2019). "LPG Accounting Specificity During ITS Storage and Transportation". Measuring Equipment and Metrology. 80 (3): 21–27. doi:10.23939/istcmtm2019.03.021. ISSN 0368-6418. S2CID 211776025.

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