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      Methyl chloride
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      Methyl chloride
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      CH3Cl
      Methyl chloride

      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
        50.488
        g/mol
      • Content in dry air
        /

      Critical Point

      • Temperature
        143.1
        °C
         289.58 °F 416.25 K
      • Pressure
        66.8
        bar
         6.68E6 pa 968.8517 lbf/in2 65.9265 Atm 6680 Kpa 5.0104E4 mmHg
      • Density
        358.07
        kg/m³
         22.3535 lb/ft³

      Triple Point

      • Temperature
        - 97.72
        °C
         - 143.896 °F 175.43 K
      • Pressure
        8.821E-3
        bar
         882.1 pa 1.2794E-1 lbf/in2 8.7057E-3 Atm 8.821E-1 Kpa 6.6163 mmHg
      Pressure 1.013 bar
      • Melting point
        - 97.72
        °C
         - 143.896 °F 175.43 K
      • Latent heat of fusion (at melting point)
        127.377
        kJ/kg
         54.799 Btu/lb 30.4438 kcal/kg
      • Solid density
        /
      Pressure 1.013 bar
      • Liquid density (at boiling point)
        1004.3
        kg/m³
         62.6963 lb/ft³
      • Boiling point
        - 24.2
        °C
         - 11.56 °F 248.95 K
      • Latent heat of vaporization (at boiling point)
        431.444
        kJ/kg
         185.612 Btu/lb 103.1176 kcal/kg
      Pressure1.013barTemperature
      • Compressibility factor Z
        /
        /
        /
      • Cp/Cv ratio γ
        /
        /
        /
      • Dynamic viscosity
        1.019E-4
        Po
         10.19 µPa.s 1.019E-5 PA.S 6.8474E-6 lb/ft/s
        1.0697E-4
        Po
         10.697 µPa.s 1.0697E-5 PA.S 7.1881E-6 lb/ft/s
        1.1033E-4
        Po
         11.033 µPa.s 1.1033E-5 PA.S 7.4139E-6 lb/ft/s
      • Gas density at boiling point
        /
        /
        /
      • Gas density
        2.3065
        kg/m³
         1.4399E-1 lb/ft³
        2.3065
        kg/m³
         1.4399E-1 lb/ft³
        2.3065
        kg/m³
         1.4399E-1 lb/ft³
      • Heat capacity at constant pressure Cp
        /
        /
        /
      • Heat capacity at constant volume Cv
        /
        /
        /
      • Liquid (at boiling point)/gas equivalent
        435.42
        mol/mol
        435.42
        mol/mol
        435.42
        mol/mol
      • Solubility in water
        /
        /
        /
      • Specific gravity
        1.8
        1.8
        1.8
      • Specific volume
        /
        /
        /
      • Thermal conductivity
        9.412
        mW/m∙K
         5.4418E-3 Btu/ft/h/°F 8.0983E-2 cal/hour∙cm∙°C 2.2495E-5 cal/s∙cm∙°C 9.412E-3 W/(m∙K)
        10.32
        mW/m∙K
         5.9668E-3 Btu/ft/h/°F 8.8796E-2 cal/hour∙cm∙°C 2.4665E-5 cal/s∙cm∙°C 1.032E-2 W/(m∙K)
        10.941
        mW/m∙K
         6.3258E-3 Btu/ft/h/°F 9.4139E-2 cal/hour∙cm∙°C 2.615E-5 cal/s∙cm∙°C 1.0941E-2 W/(m∙K)
      • Vapor pressure
        2.599
        bar
         2.599E5 pa 37.6953 lbf/in2 2.565 Atm 259.9 Kpa 1949.4157 mmHg
        4.272
        bar
         4.272E5 pa 61.9601 lbf/in2 4.2161 Atm 427.2 Kpa 3204.2724 mmHg
        5.768
        bar
         5.768E5 pa 83.6577 lbf/in2 5.6926 Atm 576.8 Kpa 4326.3677 mmHg
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      CH3Cl
      Methyl chloride

      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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      CH3Cl
      Methyl chloride

      Applications

      Examples of uses of this molecule in Industry and Healthcare

      Chemicals

      Methyl chloride is used mainly in the production of silicones. Methyl chloride is also used in the production of agricultural chemicals, methyl cellulose, quaternary amines and butyl rubber.

      Chemicals
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      CH3Cl
      Methyl chloride

      Safety & Compatibility

      Information to safely use this molecule

      • Major hazards
      • Material compatibility
      Safety
      • GHS02
        Flammable
      • GHS04
        Gas under pressure
      • 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
          625
          °C
           1157 °F 898.15 K
        • Flash point
          /
        • Lower flammability limit
          /
        • Upper flammability limit
          /

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

        • Auto-ignition temperature
          632
          °C
           1169.6 °F 905.15 K
        • Flash point
          /
        • Lower flammability limit
          /
        • Upper flammability limit
          /

      Odor

      Faintly sweet

      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
        Satisfactory
      • Polyvinyl chloride
        Not recommended
        significant swelling
      • Ethylene tetrafluoroethylene
        Satisfactory
      • Polycarbonate
        No data
      • Polyamide
        Satisfactory
      • Polypropylene
        Not recommended
        significant swelling

      Elastomers

      • Buthyl (isobutene- isoprene) rubber
        Not recommended
        significant swelling
      • Nitrile rubber NBR
        Not recommended
        significant swelling
      • Chloroprene
        Not recommended
        significant swelling
      • Silicone
        Not recommended
        significant swelling
      • Perfluoroelastomers
        Satisfactory
      • Fluoroelastomers
        Satisfactory
      • Neoprene
        Not recommended
      • Polyurethane
        Not recommended
        significant swelling
      • 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.

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      CH3Cl
      Methyl chloride

      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.

      CH3Cl

      Methyl chloride