Propane (data page)
# Propane (data page)

This page provides supplementary chemical data on propane.

## Structure and properties

Structure and properties :

| Dielectric constant | (fluid) 1.6 $ε_0$ at 0 °C |
| - | - |
| Magnetic susceptibility | −40 |

## Thermodynamic properties

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, $Δ_{fus}H^o$ | 79.96 J/g |
| Std entropy change of fusion, $Δ_{fus}S^o$ | ? J/(mol·K) |
| Std enthalpy change of vaporization, $Δ_{vap}H^o$ | 24.545 kJ/mol |
| Std entropy change of vaporization, $Δ_{vap}S^o$ | ? J/(mol·K) |
| Solid properties ||
| Std enthalpy change of formation, $Δ_fH^o_{solid}$ | −103.85 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 | a = 877.88 $L^2$ $kPa/mol^2$ b = 0.08445 liter per mole |

## Density of liquid and gas

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

## Vapor pressure of liquid

| P in mm Hg | P in mm Hg | 1 | 10 | 40 | 100 | 400 | 760 | 1520 | 3800 | 7600 | 15200 | 30400 | 45600 |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| T in °C | 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.

## Spectral data

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

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