Propane / C₃H₈


Gas Identification

Other denomination


CAS Registry Number
SCBA type

Chemical properties

Molecular formula
Molecular mass
44,1 g/mol

Physical properties

Boiling point
-42,1 °C
Autoignition temperature
470 °C
Gas/Vapour density
11,07 eV

Flammability limit

2,1 % v/v
9,5 % v/v

Threshold limit value


Propane : Description and use


Propane is a linear alkane. Today, it is mainly derived from other petroleum products using thermochemistry processes, from gas or from petrol, but it is also starting to be derived from biogas (i.e. synthesised from so-called renewable biomass and not from fossil fuels). It is frequently used as a source of chemical energy through combustion in internal combustion engines, boilers, barbecues. It is generally sold in liquid state, as LPG in particular (it is one of its main constituents).
It is a colourless, odourless, liquefied-compressed gas. An additive, ethanethiol, is used to give it an odour so any leaks can be detected.

  • Fuel (residential, industrial and agricultural sectors)
  • Extraction solvent (asphaltic compound of heavy crude oil fractions)
  • Refrigerant (chemical refining and gaseous operation techniques)
  • Aerosol propellant
  • Raw material for the production of ethylene and other petrochemical products
  • Component of liquefied petroleum gas (LPG)

Propane : Warnings and caution

GHS hazard statements

H225 - Highly flammable liquid and vapour.
H318 - Causes serious eye damage.
H336 - May cause drowsiness or dizziness.

GHS precautionary statements

P210 - Keep away from heat, sparks, open flames, hot surfaces. No smoking.
P377 - Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P381 - Eliminate all ignition sources if safe to do so.
P410+P403 - Protect from sunlight. Store in a well-ventilated place.
P501 - Dispose of contents/container in accordance with local/regional/national/international regulations.

SGH02 : Inflammable
SGH04 : Gaz sous pression

Propane : Related products

Aucun produit disponible n'est actuellement lié à la détection de ce gaz.