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Fluorine
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Fluorine
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F2
Fluorine

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
    37.997
    g/mol
  • Content in air
    /

Critical Point

  • Temperature
    - 128.74
    °C
    - 199.732 °F 144.41 K
  • Pressure
    51.724
    bar
    5.1724E6 pa 750.1929 lbf/in2 51.0476 Atm 5172.4 Kpa 3.8796E4 mmHg
  • Density
    592.864
    kg/m³
    37.0112 lb/ft³

Triple Point

  • Temperature
    - 219.67
    °C
    - 363.406 °F 53.48 K
  • Pressure
    2.389E-3
    bar
    238.9 pa 3.465E-2 lbf/in2 2.3578E-3 Atm 2.389E-1 Kpa 1.7919 mmHg
Pressure 1.013 bar
  • Melting point
    - 219.61
    °C
    - 363.298 °F 53.54 K
  • Latent heat of fusion (at melting point)
    13.432
    kJ/kg
    5.7786 Btu/lb 3.2103 kcal/kg
  • Solid density
    /
Pressure 1.013 bar
  • Liquid density
    1501.778
    kg/m³
    93.7527 lb/ft³
  • Boiling point
    - 188.11
    °C
    - 306.598 °F 85.04 K
  • Latent heat of vaporization (at boiling point)
    174.363
    kJ/kg
    75.0129 Btu/lb 41.6738 kcal/kg
Pressure1.013barTemperature
  • Compressibility factor Z
    9.9935E-1
    9.995E-1
    9.9959E-1
  • Cp/Cv ratio γ
    1.3706
    1.3661
    1.3632
  • Dynamic viscosity
    2.1499E-4
    Po
    21.499 µPa.s 2.1499E-5 PA.S 1.4447E-5 lb/ft/s
    2.2491E-4
    Po
    22.491 µPa.s 2.2491E-5 PA.S 1.5113E-5 lb/ft/s
    2.3143E-4
    Po
    23.143 µPa.s 2.3143E-5 PA.S 1.5551E-5 lb/ft/s
  • Gas density at boiling point
    5.643
    kg/m³
    3.5228E-1 lb/ft³
    5.643
    kg/m³
    3.5228E-1 lb/ft³
    5.643
    kg/m³
    3.5228E-1 lb/ft³
  • Gas density
    1.6959
    kg/m³
    1.0587E-1 lb/ft³
    1.6074
    kg/m³
    1.0035E-1 lb/ft³
    1.5533
    kg/m³
    9.6969E-2 lb/ft³
  • Heat capacity at constant pressure Cp
    8.1318E-1
    kJ/(kg.K)
    1.9435E-1 BTU/lb∙°F 813.18 J/kg∙K 1.9435E-1 kcal/kg∙K
    8.2008E-1
    kJ/(kg.K)
    1.96E-1 BTU/lb∙°F 820.08 J/kg∙K 1.96E-1 kcal/kg∙K
    8.247E-1
    kJ/(kg.K)
    1.9711E-1 BTU/lb∙°F 824.7 J/kg∙K 1.9711E-1 kcal/kg∙K
  • Heat capacity at constant volume Cv
    5.9329E-1
    kJ/(kg.K)
    1.418E-1 BTU/lb∙°F 593.29 J/kg∙K 1.418E-1 kcal/kg∙K
    6.003E-1
    kJ/(kg.K)
    1.4348E-1 BTU/lb∙°F 600.3 J/kg∙K 1.4348E-1 kcal/kg∙K
    6.05E-1
    kJ/(kg.K)
    1.446E-1 BTU/lb∙°F 605 J/kg∙K 1.446E-1 kcal/kg∙K
  • Liquid (at boiling point)/gas equivalent
    885.55
    mol/mol
    934.3
    mol/mol
    966.85
    mol/mol
  • Solubility in water
    /
    /
    /
  • Specific gravity
    1.31
    1.31
    1.31
  • Specific volume
    5.897E-1
    m³/kg
    9.4461 ft³/lb
    6.221E-1
    m³/kg
    9.9651 ft³/lb
    6.438E-1
    m³/kg
    10.3127 ft³/lb
  • Thermal conductivity
    23.467
    mW/m∙K
    1.3568E-2 Btu/ft/h/°F 2.0192E-1 cal/hour∙cm∙°C 5.6087E-5 cal/s∙cm∙°C 2.3467E-2 W/(m∙K)
    24.674
    mW/m∙K
    1.4266E-2 Btu/ft/h/°F 2.123E-1 cal/hour∙cm∙°C 5.8972E-5 cal/s∙cm∙°C 2.4674E-2 W/(m∙K)
    25.477
    mW/m∙K
    1.473E-2 Btu/ft/h/°F 2.1921E-1 cal/hour∙cm∙°C 6.0891E-5 cal/s∙cm∙°C 2.5477E-2 W/(m∙K)
  • Vapor pressure
    /
    /
    /
F2
Fluorine

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)
F2
Fluorine

Applications

Examples of uses of this molecule in Industry and Healthcare

Chemicals

Uranium hexafluoride is produced by direct fluorination of uranium oxide or uranium tetrafluoride using fluorine. Sodium fluorides are produced from fluorine.

Chemicals
F2
Fluorine

Safety

Information to safely use this molecule

  • Major hazards
  • Material compatibility

Threshold of toxicity

  • VME
    /
  • VLE
    1
    ppm
    or 2
    mg/m3
  • ILV-8h
    1
    ppm
    or 1.58
    mg/m3
  • ILV 15mn
    2
    ppm
    or 3.16
    mg/m3
  • TLV-TWA (USA)
    1
    ppm
    1 ppm 1.E-4 vol/% 1.E-6 vol/vol
  • TLV-STEL (USA)
    2
    ppm
    2 ppm 2.E-4 vol/% 2.E-6 vol/vol

Lethal concentration

  • CL50 (in rats; 4h)
    92.5
    ppm
    92.5 ppm 9.25E-3 vol/% 9.25E-5 vol/vol

Metals

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

Plastics

  • Polytetrafluoroethylene
    Not recommended
    risk of explosion and fire
  • Polychlorotrifluoroethylene
    Not recommended
    risk of explosion and fire
  • Polyvinylidene fluoride
    Not recommended
    risk of explosion and fire
  • Polyvinyl chloride
    no data
  • Ethylene tetrafluoroethylene
    no data
  • Polycarbonate
    no data
  • Polyamide
    Not recommended
    risk of explosion and fire
  • Polypropylene
    Not recommended
    risk of explosion and fire

Elastomers

  • Buthyl (isobutene- isoprene) rubber
    Not recommended
    risk of explosion and fire
  • Nitrile rubber
    Not recommended
    risk of explosion and fire
  • Chloroprene
    Not recommended
    risk of explosion and fire
  • Chlorofluorocarbons
    Not recommended
    risk of explosion and fire
  • Silicon
    Not recommended
    risk of explosion and fire
  • Perfluoroelastomers
    no data
  • Fluoroelastomers
    no data
  • Nitrile rubber
    no data
  • Neoprene
    no data
  • Polyurethane
    no data
  • Ethylene-Propylene
    Not recommended
    risk of explosion and fire

Lubricants

  • Hydrocarbon based lubricant
    Not recommended
    risk of explosion and fire
  • Fluorocarbon based lubricant
    Not recommended
    risk of explosion and fire

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.

F2
Fluorine

Learn More

General information