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EC number: 204-126-9
CAS number: 116-14-3
The flammability limits of pure TFE in air at 1atm pressure and 20°C have been established to be 13.0 to 43.4% (v/v).
The flammability limits of TFE in air at 1atm pressure and 20°C
have been established to be 13.0 to 43.4% (v/v). The flammability limits
of TFE saturated with alpha-pinene (stabiliser) vapour at 15°C were
found to be 10.9 to 42.4% (v/v).
Fuimara1989 states that at ambient room temperature and pressure,
air and TFE will form a flammable mixture when the TFE molar percentage
is between 6.5 and 46% or the volume percentage is between 14 and 43%,
the latter being in agreement with the experimental values discussed
The flammability limits of pure TFE in air at 1atm pressure and 20°C
have been established to be 13.0 to 43.4% (v/v). Therefore as TFE is a
gaseous substance that is flammable in contact with air at ambient
temperatures and pressure it is classified as Extremely Flammable
according to EU Directive 67/548/EEC and EU Classification, Labelling
and Packaging of Substances and Mixtures (CLP) Regulation EC No.
1272/2008. For transport, Tetrafluoroethylene (Stabilized) (UN 1081) is
classified as a flammable gas belonging to division 2.1.
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