Skip to main content
Retour
Methyl bromide
Click and drag to move the molecule
Methyl bromide
Click and drag to move the molecule
CH3Br
Methyl bromide

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
    94.939
    g/mol
  • Content in air
    /

Critical Point

  • Temperature
    190.85
    °C
    375.53 °F 464 K
  • Pressure
    69.29
    bar
    6.929E6 pa 1004.9661 lbf/in2 68.3839 Atm 6929 Kpa 5.1972E4 mmHg
  • Density
    624.593
    kg/m³
    38.992 lb/ft³

Triple Point

  • Temperature
    - 93.71
    °C
    - 136.678 °F 179.44 K
  • Pressure
    2.07E-3
    bar
    207 pa 3.0023E-2 lbf/in2 2.0429E-3 Atm 2.07E-1 Kpa 1.5526 mmHg
Pressure 1.013 bar
  • Melting point
    - 93.71
    °C
    - 136.678 °F 179.44 K
  • Latent heat of fusion (at melting point)
    62.977
    kJ/kg
    27.0934 Btu/lb 15.0519 kcal/kg
  • Solid density
    /
Pressure 1.013 bar
  • Liquid density
    1721.37
    kg/m³
    107.4614 lb/ft³
  • Boiling point
    3.51
    °C
    38.318 °F 276.66 K
  • Latent heat of vaporization (at boiling point)
    253.396
    kJ/kg
    109.0138 Btu/lb 60.5631 kcal/kg
Pressure1.013barTemperature
  • Compressibility factor Z
    /
    /
    /
  • Cp/Cv ratio γ
    /
    /
    /
  • Dynamic viscosity
    /
    1.2618E-4
    Po
    12.618 µPa.s 1.2618E-5 PA.S 8.4789E-6 lb/ft/s
    1.3024E-4
    Po
    13.024 µPa.s 1.3024E-5 PA.S 8.7517E-6 lb/ft/s
  • Gas density at boiling point
    /
    /
    /
  • Gas density
    /
    /
    /
  • Heat capacity at constant pressure Cp
    /
    /
    /
  • Heat capacity at constant volume Cv
    /
    /
    /
  • Liquid (at boiling point)/gas equivalent
    /
    /
    /
  • Solubility in water
    /
    /
    /
  • Specific gravity
    /
    /
    /
  • Specific volume
    /
    /
    /
  • Thermal conductivity
    /
    7.265
    mW/m∙K
    4.2004E-3 Btu/ft/h/°F 6.251E-2 cal/hour∙cm∙°C 1.7364E-5 cal/s∙cm∙°C 7.265E-3 W/(m∙K)
    7.69
    mW/m∙K
    4.4462E-3 Btu/ft/h/°F 6.6166E-2 cal/hour∙cm∙°C 1.838E-5 cal/s∙cm∙°C 7.69E-3 W/(m∙K)
  • Vapor pressure
    /
    1.555
    bar
    1.555E5 pa 22.5534 lbf/in2 1.5347 Atm 155.5 Kpa 1166.3491 mmHg
    2.19
    bar
    2.19E5 pa 31.7633 lbf/in2 2.1614 Atm 219 Kpa 1642.6396 mmHg
CH3Br
Methyl bromide

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)
CH3Br
Methyl bromide

Applications

Examples of uses of this molecule in Industry and Healthcare

Chemicals

Methyl bromide is used as a methylating agent in various chemical reactions and as a solvent.

Chemicals

Other

Methyl bromide is used to control fungi, insects and rodents.

CH3Br
Methyl bromide

Safety

Information to safely use this molecule

  • Major hazards
  • Material compatibility
  • GHS04
    Gas under pressure
  • GHS06
    Acute Toxicity
  • GHS08
    Serious health hazard
  • GHS09
    Hazardous to the environment

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
      /
    • Lower flammability limit
      8.6
      vol/%
      8.6E4 ppm 8.6E4 ppm 8.6E-2 vol/vol
    • Upper flammability limit
      20
      vol/%
      2.E5 ppm 2.E5 ppm 0.2 vol/vol
  • US (according to NFPA for Limits and ASTM E659 for autoignition temperature)

    • Auto-ignition temperature
      537
      °C
      998.6 °F 810.15 K
    • Flash point
      /
    • Lower flammability limit
      10
      vol/%
      10.E4 ppm 10.E4 ppm 0.1 vol/vol
    • Upper flammability limit
      16
      vol/%
      1.6E5 ppm 1.6E5 ppm 0.16 vol/vol

Odor

Chloroform like

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
    Satisfactory
  • Polychlorotrifluoroethylene
    Satisfactory
  • 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
    Not recommended
    significant swelling
  • Nitrile rubber
    Not recommended
    significant swelling
  • Chloroprene
    Not recommended
    significant swelling
  • Chlorofluorocarbons
    Satisfactory
  • Silicon
    no data
  • Perfluoroelastomers
    no data
  • Fluoroelastomers
    no data
  • Nitrile rubber
    no data
  • Neoprene
    no data
  • Polyurethane
    no data
  • Ethylene-Propylene
    Not recommended
    significant swelling

Lubricants

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

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.

CH3Br
Methyl bromide

Learn More

General information

More information

Due to their ozone-depleting effect, the production of refrigerants is continuously decreasing, based on Montreal protocol requirements. Their use is controlled and they are progressively being replaced.