Propene

C₃H₆
CAS Number 115-07-1
UN1077 (gas)

Molecule
Properties
Applications
Safety & Compatibility
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Liquid / Gas Volumes

Calculate the volume or mass of a quantity of gas or liquid

Liquid Phase

At boiling point at 1.013 bar

m³ (Volume)

kg (Mass)

Gas Phase

In standard conditions (1.013 bar, 15°C)

m³ (Volume)

kg (Mass)

Physical Properties

Download the set of data (XLS - 76.9 KB)

General Properties
Solid Phase
Liquid Phase
Gas Phase

Molecule phase diagram showing the transition phases between solid, liquid and gas as a function of temperature and pressure

Pressure (bar)

- Molar mass 42.080 g/mol
- Content in dry air /
Critical Point
- Temperature 91.70 °C
- Pressure 46 bar
- Density 227.46 kg/m³
Triple Point
- Temperature -185.20 °C
- Pressure 7.4E-9 bar

Pressure 1.013 bar

Latent heat of fusion (at melting point)	69.772 kJ/kg
Melting point	- 185.26 °C

Pressure 1.013 bar

Boiling point	- 47.62 °C
Latent heat of vaporization (at boiling point)	438.96 kJ/kg
Liquid density (at boiling point)	610.06 kg/m³

Pressure 1.013 bar

0 °C
15 °C
25 °C

Compressibility factor Z	9.8094E-1
Cp/Cv ratio γ	1.1717
Gas density (at boiling point)	2.358 kg/m³
Gas density	1.9134 kg/m³
Gas/(liquid at boiling point) equivalent	318.84 vol/vol
Heat capacity Cp	1.4643 kJ/(kg.K)
Heat capacity Cv	1.2498 kJ/(kg.K)
Specific gravity	1.48
Specific volume	5.226E-1 m³/kg
Thermal conductivity	14.667 mW/(m.K)
Vapor pressure	5.9304 bar
Viscosity	7.813E-5 Po

Compressibility factor Z	9.8393E-1
Cp/Cv ratio γ	1.1625
Gas density	1.8083 kg/m³
Gas/(liquid at boiling point) equivalent	338.23 vol/vol
Heat capacity Cp	1.5139 kJ/(kg.K)
Heat capacity Cv	1.3022 kJ/(kg.K)
Specific gravity	1.48
Specific volume	5.53E-1 m³/kg
Thermal conductivity	16.1 mW/(m.K)
Vapor pressure	9.0442 bar
Viscosity	8.2625E-5 Po

Compressibility factor Z	9.8559E-1
Cp/Cv ratio γ	1.157
Gas density	1.7447 kg/m³
Gas/(liquid at boiling point) equivalent	349.66 vol/vol
Heat capacity Cp	1.5482 kJ/(kg.K)
Heat capacity Cv	1.338 kJ/(kg.K)
Specific gravity	1.48
Specific volume	5.732E-1 m³/kg
Thermal conductivity	17.095 mW/(m.K)
Vapor pressure	11.6845 bar
Viscosity	8.5599E-5 Po

Applications

Examples of uses of this molecule in Industry and Healthcare

Chemicals

Propene is the second most important feedstock for the petrochemical industry. Propene is the feedstock in the production of one of the most important polymer: polypropylene. It is also converted to propylene oxide, a precursor of propylene glycol and polyurethane, acrylonitrile, cumene, Oxo-alcohols, Isopropanol and acrylic acid.

Electronic components

Propene is a carbon source for amorphous carbon hard masks.

Laboratories & Research Centers

Propene is used in calibration gas mixtures for petrochemical industry, environmental emission monitoring, industrial hygiene monitors and trace impurity analyzers.

Safety & Compatibility

Major Hazards
Material Compatibility

GHS02

Flammable

GHS04

Gas under pressure

Autoignition Temperature, Flammability Limits & Flash Point

Europe (according to EN1839 for Limits and EN 14522 for autoignition temperature)

Autoignition temperature (Chemsafe)	485 °C
Lower flammability limit (IEC 80079-20-1)	2 vol%
Upper flammability limit (IEC 80079-20-1)	11.6 vol%

US (according to ASTM E681 for Limits and ASTM E659 for autoignition temperature)

Autoignition temperature (NFPA 325)	455 °C
Lower flammability limit (NFPA 325)	2 vol%
Upper flammability limit (NFPA 325)	11.1 vol%

Metals

Aluminium	Satisfactory
Brass	Satisfactory
Monel	No data
Copper	Not recommended
Ferritic Steel	Satisfactory
Stainless steel	Satisfactory
Zinc	No data
Titanium	No data

Plastics

Polytetrafluoroethylene	Satisfactory
Polychlorotrifluoroethylene	Satisfactory
Polyvinylidene fluoride	Satisfactory
Polyvinyl chloride	Significant swelling Not recommended
Ethylene tetrafluoroethylene	No data
Polycarbonate	No data
Polyamide	Satisfactory
Polypropylene	Satisfactory

Elastomers

Butyl (isobutene- isoprene) rubber	significant swelling Not recommended
Nitrile rubber	significant swelling Not recommended
Chloroprene	significant swelling Not recommended
Chlorofluorocarbons	No data
Silicone	Significant swelling Not recommended
Perfluoroelastomers	Satisfactory
Fluoroelastomers	Satisfactory
Neoprene	No data
Polyurethane	Significant swelling Not recommended
Ethylene-Propylene	significant swelling Not recommended

Lubricants

Hydrocarbon based lubricant	significant loss of mass Not recommended
Fluorocarbon based lubricant	Satisfactory

Materials compatibility

Recommendations : Air Liquide has gathered data on the compatibility of gases with materials to assist you in evaluating which materials to use for a gas system. Although the information has been compiled from what Air Liquide believes are reliable sources (International Standards: Compatibility of cylinder and valve materials with gas content; Part 1- Metallic materials: ISO11114-1 (March 2012), Part 2 - Non-metallic materials: ISO11114-2 (April 2013), it must be used with extreme caution and engineering judgement. No raw data such as these can cover all conditions of concentration, temperature, humidity, impurities and aeration. It is therefore recommended that this table is only used to identify possible materials for applications at high pressure and ambient temperature. Extensive investigation and testing under the specific conditions of use need to be carried out to validate a material selection for a given application. Contact the regional Air Liquide team for expertise service.

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More information

Propene is an unsaturated organic compound. It is the second simplest member of the alkene class of hydrocarbons.