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Thread: R 21

  1. 05-09-2008, 05:32 AM #1
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    R 21



    Hello,
    Any Body Have Details / Properties Of R21?


  2. 05-09-2008, 03:27 PM #2
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    Re: R 21

    R21

    Dichlorofluoromethane

    Physical state at 20 °C : Liquefied gas.
    Colour : Colourless.
    Odo(u)r : Ethereal. Poor warning properties at low concentrations.
    Molecular weight : 103
    Melting point [°C] : -135
    Boiling point [°C] : 8.9
    Critical temperature [°C] : 178
    Vapour pressure, 20°C : 1.5 bar
    Relative density, gas (air=1) : 3.6
    Relative density, liquid (water=1) : 1.4
    Solubility in water [mg/l] : 9420
    Flammability range [vol% in air] : Non flammable.
    Other data : Gas/vapour heavier than air. May accumulate in confined spaces, particularly at or
    below ground level.
    If it ain't broke, it doesn't have enough features yet.


    Damo
  3. 07-09-2008, 04:32 AM #3
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    Re: R 21

    dear friend,
    thanx very much
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