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      Propene
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      Propene
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      C3H6
      Propene

      Physical Properties

      Under solid (grey), liquid (blue) and vapor states (white) along the equilibrium curves

      • General properties
      • Solid phase
      • Liquid Phase
      • Gas Phase
      (P)
      log(P)
      Download
      • Molecular weight
        42.08
        g/mol
      • Content in air
        /

      Critical Point

      • Temperature
        91.06
        °C
         195.908 °F 364.21 K
      • Pressure
        45.55
        bar
         4.555E6 pa 660.6466 lbf/in2 44.9544 Atm 4555 Kpa 3.4165E4 mmHg
      • Density
        230.081
        kg/m³
         14.3635 lb/ft³

      Triple Point

      • Temperature
        - 185.2
        °C
         - 301.36 °F 87.95 K
      • Pressure
        7.4E-9
        bar
         7.4E-4 pa 1.0733E-7 lbf/in2 7.3032E-9 Atm 7.4E-7 Kpa 5.5505E-6 mmHg
      Pressure 1.013 bar
      • Melting point
        - 185.26
        °C
         - 301.468 °F 87.89 K
      • Latent heat of fusion (at melting point)
        69.772
        kJ/kg
         30.0167 Btu/lb 16.6759 kcal/kg
      • Solid density
        /
      Pressure 1.013 bar
      • Liquid density
        610.06
        kg/m³
         38.0847 lb/ft³
      • Boiling point
        - 47.62
        °C
         - 53.716 °F 225.53 K
      • Latent heat of vaporization (at boiling point)
        438.96
        kJ/kg
         188.8455 Btu/lb 104.914 kcal/kg
      Pressure1.013barTemperature
      • Compressibility factor Z
        9.8094E-1
        9.8393E-1
        9.8559E-1
      • Cp/Cv ratio γ
        1.1717
        1.1625
        1.157
      • Dynamic viscosity
        7.813E-5
        Po
         7.813 µPa.s 7.813E-6 PA.S 5.2501E-6 lb/ft/s
        8.2625E-5
        Po
         8.2625 µPa.s 8.2625E-6 PA.S 5.5522E-6 lb/ft/s
        8.5599E-5
        Po
         8.5599 µPa.s 8.5599E-6 PA.S 5.752E-6 lb/ft/s
      • Gas density at boiling point
        2.358
        kg/m³
         1.472E-1 lb/ft³
        2.358
        kg/m³
         1.472E-1 lb/ft³
        2.358
        kg/m³
         1.472E-1 lb/ft³
      • Gas density
        1.9134
        kg/m³
         1.1945E-1 lb/ft³
        1.8083
        kg/m³
         1.1289E-1 lb/ft³
        1.7447
        kg/m³
         1.0892E-1 lb/ft³
      • Heat capacity at constant pressure Cp
        1.4643
        kJ/(kg.K)
         3.4998E-1 BTU/lb∙°F 1464.33 J/kg∙K 3.4998E-1 kcal/kg∙K
        1.5139
        kJ/(kg.K)
         3.6183E-1 BTU/lb∙°F 1513.902 J/kg∙K 3.6183E-1 kcal/kg∙K
        1.5482
        kJ/(kg.K)
         3.7002E-1 BTU/lb∙°F 1548.17 J/kg∙K 3.7002E-1 kcal/kg∙K
      • Heat capacity at constant volume Cv
        1.2498
        kJ/(kg.K)
         2.9871E-1 BTU/lb∙°F 1249.786 J/kg∙K 2.9871E-1 kcal/kg∙K
        1.3022
        kJ/(kg.K)
         3.1124E-1 BTU/lb∙°F 1302.234 J/kg∙K 3.1124E-1 kcal/kg∙K
        1.338
        kJ/(kg.K)
         3.198E-1 BTU/lb∙°F 1338.023 J/kg∙K 3.198E-1 kcal/kg∙K
      • Liquid (at boiling point)/gas equivalent
        318.84
        mol/mol
        387.37
        mol/mol
        349.66
        mol/mol
      • Solubility in water
        /
        /
        /
      • Specific gravity
        1.48
        1.48
        1.48
      • Specific volume
        5.226E-1
        m³/kg
         8.3712 ft³/lb
        5.53E-1
        m³/kg
         8.8582 ft³/lb
        5.732E-1
        m³/kg
         9.1818 ft³/lb
      • Thermal conductivity
        14.667
        mW/m∙K
         8.4801E-3 Btu/ft/h/°F 1.262E-1 cal/hour∙cm∙°C 3.5055E-5 cal/s∙cm∙°C 1.4667E-2 W/(m∙K)
        16.1
        mW/m∙K
         9.3086E-3 Btu/ft/h/°F 1.3853E-1 cal/hour∙cm∙°C 3.848E-5 cal/s∙cm∙°C 1.61E-2 W/(m∙K)
        17.095
        mW/m∙K
         9.8839E-3 Btu/ft/h/°F 1.4709E-1 cal/hour∙cm∙°C 4.0858E-5 cal/s∙cm∙°C 1.7095E-2 W/(m∙K)
      • Vapor pressure
        5.9304
        bar
         5.9304E5 pa 86.0131 lbf/in2 5.8528 Atm 593.04 Kpa 4448.1781 mmHg
        9.0442
        bar
         9.0442E5 pa 131.175 lbf/in2 8.9259 Atm 904.42 Kpa 6783.7266 mmHg
        11.6845
        bar
         1.1685E6 pa 169.4693 lbf/in2 11.5317 Atm 1168.45 Kpa 8764.12 mmHg
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      C3H6
      Propene

      Liquid / Gas Volumes

      Calculate a liquid or gas volume or a mass

      Liquid Phase

      At boiling point at 1.013 bar

      m3(Volume)
      kg(Mass)

      Gas Phase

      at 1.013 bar and boiling point

      m3(Volume)
      kg(Mass)
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      C3H6
      Propene

      Applications

      Examples of uses of this molecule in Industry and Healthcare

      Electronic components

      Propene is a carbon source for amorphous carbon hard masks.

      Electronic components

      Laboratories & Research Centers

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

      Laboratories & Research Centers

      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.

      Chemicals
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      C3H6
      Propene

      Safety

      Information to safely use this molecule

      • Major hazards
      • Material compatibility
      Safety
      • GHS02
        Flammable
      • GHS04
        Gas under pressure

      Autoignition Temperature in Air at Patm and Flammability Limits in Air at Patm and 293.15 K (except if the temperature is indicated)

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

        • Auto-ignition temperature
          485
          °C
           905 °F 758.15 K
        • Flash point
          /
        • Lower flammability limit
          2
          vol/%
           2.E4 ppm 2.E4 ppm 0.02 vol/vol
        • Upper flammability limit
          11.6
          vol/%
           1.16E5 ppm 1.16E5 ppm 1.16E-1 vol/vol

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

        • Auto-ignition temperature
          455
          °C
           851 °F 728.15 K
        • Flash point
          /
        • Lower flammability limit
          2
          vol/%
           2.E4 ppm 2.E4 ppm 0.02 vol/vol
        • Upper flammability limit
          11.1
          vol/%
           1.11E5 ppm 1.11E5 ppm 1.11E-1 vol/vol

      Metals

      • Aluminium
        Satisfactory
      • Brass
        Satisfactory
      • Monel
        Satisfactory
      • Copper
        Satisfactory
      • Ferritic Steel
        Satisfactory
      • Stainless steel
        Satisfactory
      • Zinc
        Satisfactory
      • Titanium
        no data

      Plastics

      • Polytetrafluoroethylene
        Satisfactory
      • Polychlorotrifluoroethylene
        Satisfactory
      • Polyvinylidene fluoride
        Satisfactory
      • Polyvinyl chloride
        Satisfactory
      • Ethylene tetrafluoroethylene
        Satisfactory
      • Polycarbonate
        Not recommended
      • Polyamide
        no data
      • Polypropylene
        Satisfactory

      Elastomers

      • Buthyl (isobutene- isoprene) rubber
        Not recommended
        significant swelling
      • Nitrile rubber
        Not recommended
        significant swelling
      • Chloroprene
        Not recommended
        significant swelling
      • Chlorofluorocarbons
        no data
      • Silicon
        Not recommended
        significant swelling
      • Perfluoroelastomers
        Satisfactory
      • Fluoroelastomers
        Satisfactory
      • Nitrile rubber
        Not recommended
      • Neoprene
        Not recommended
      • Polyurethane
        Not recommended
      • Ethylene-Propylene
        Not recommended
        significant swelling

      Lubricants

      • Hydrocarbon based lubricant
        Not recommended
        significant swelling
      • 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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      C3H6
      Propene

      Learn More

      General information

      More information

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

      C3H6

      Propene