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Toluene
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Toluene
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C7H8
Toluene

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
    92.138
    g/mol
  • Content in air
    /

Critical Point

  • Temperature
    318.6
    °C
    605.48 °F 591.75 K
  • Pressure
    41.263
    bar
    4.1263E6 pa 598.469 lbf/in2 40.7234 Atm 4126.3 Kpa 3.095E4 mmHg
  • Density
    291.987
    kg/m³
    18.2281 lb/ft³

Triple Point

  • Temperature
    - 95.15
    °C
    - 139.27 °F 178 K
  • Pressure
    3.939E-7
    bar
    3.939E-2 pa 5.713E-6 lbf/in2 3.8875E-7 Atm 3.939E-5 Kpa 2.9545E-4 mmHg
Pressure 1.013 bar
  • Melting point
    - 94.97
    °C
    - 138.946 °F 178.18 K
  • Latent heat of fusion (at melting point)
    72.022
    kJ/kg
    30.9847 Btu/lb 17.2137 kcal/kg
  • Solid density
    /
Pressure 1.013 bar
  • Liquid density
    779.14
    kg/m³
    48.64 lb/ft³
  • Boiling point
    110.6
    °C
    231.08 °F 383.75 K
  • Latent heat of vaporization (at boiling point)
    360.696
    kJ/kg
    155.1754 Btu/lb 86.2084 kcal/kg
Pressure1.013barTemperature
  • Compressibility factor Z
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  • Cp/Cv ratio γ
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  • Dynamic viscosity
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  • Gas density at boiling point
    3.05
    kg/m³
    1.904E-1 lb/ft³
    3.05
    kg/m³
    1.904E-1 lb/ft³
    3.05
    kg/m³
    1.904E-1 lb/ft³
  • Gas density
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  • Heat capacity at constant pressure Cp
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  • Heat capacity at constant volume Cv
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  • Liquid (at boiling point)/gas equivalent
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  • Solubility in water
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  • Specific gravity
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  • Specific volume
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  • Thermal conductivity
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  • Vapor pressure
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C7H8
Toluene

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)
C7H8
Toluene

Applications

Examples of uses of this molecule in Industry and Healthcare

C7H8
Toluene

Safety

Information to safely use this molecule

  • Major hazards
  • Material compatibility
  • GHS02
    Flammable
  • GHS07
    Health hazards
  • GHS08
    Serious health hazard

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
      535
      °C
      995 °F 808.15 K
    • Flash point
      4
      °C
      39.2 °F 277.15 K
    • Lower flammability limit
      1
      vol/%
      10000 ppm 10000 ppm 0.01 vol/vol
    • Upper flammability limit
      7.8
      vol/%
      7.8E4 ppm 7.8E4 ppm 7.8E-2 vol/vol
  • US (according to NFPA for Limits and ASTM E659 for autoignition temperature)

    • Auto-ignition temperature
      480
      °C
      896 °F 753.15 K
    • Flash point
      /
    • Lower flammability limit
      1.1
      vol/%
      1.1E4 ppm 1.1E4 ppm 1.1E-2 vol/vol
    • Upper flammability limit
      7.1
      vol/%
      7.1E4 ppm 7.1E4 ppm 7.1E-2 vol/vol

Threshold of toxicity

  • VME
    100
    ppm
    or 384
    mg/m3
  • VLE
    20
    ppm
    or 76.8
    mg/m3
  • ILV-8h
    50
    ppm
    or 192
    mg/m3
  • ILV 15mn
    100
    ppm
    or 384
    mg/m3
  • TLV-TWA (USA)
    /
  • TLV-STEL (USA)
    50
    ppm
    50 ppm 5.E-3 vol/% 5.E-5 vol/vol

Lethal dose

  • DL50 (orally in rats)
    5300
    ppm
    to 7.4E4
    ppm

Odor

Like solvent for paint

Metals

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

Plastics

  • Polytetrafluoroethylene
    no data
  • Polychlorotrifluoroethylene
    no data
  • Polyvinylidene fluoride
    no data
  • Polyvinyl chloride
    no data
  • Ethylene tetrafluoroethylene
    no data
  • Polycarbonate
    no data
  • Polyamide
    no data
  • Polypropylene
    no data

Elastomers

  • Buthyl (isobutene- isoprene) rubber
    no data
  • Nitrile rubber
    no data
  • Chloroprene
    no data
  • Chlorofluorocarbons
    no data
  • Silicon
    no data
  • Perfluoroelastomers
    no data
  • Fluoroelastomers
    no data
  • Nitrile rubber
    no data
  • Neoprene
    no data
  • Polyurethane
    no data
  • Ethylene-Propylene
    no data

Lubricants

  • Hydrocarbon based lubricant
    no data
  • Fluorocarbon based lubricant
    no data

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.

C7H8
Toluene

Learn More

General information

More information

Its synthesis was discovered by Rudolf Fittig. Its name was derived from the older name "toluol", which refers to tolu balsam, an aromatic extract from the tropical tree Myroxylon balsamum, from which it was first isolated.