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EC number: 204-126-9
CAS number: 116-14-3
TFE is normally manufactured in a closed system. TFE vapours from vented
equipment and tanks are destroyed by thermal oxidation. The use of TFE
in fluoropolymer synthesis, nitroso-rubbers and low molecular mass
compounded intermediates may result in its release to the environment
through various waste streams.
In TFE-based polymer powders or granules, residual TFE monomer is not
detectable (limit of detection 0.01 - 1 mg/kg). Due to its water
solubility (110 mg/l) TFE monomer is always present in aqueous polymer
dispersions at concentrations up to 1mg/kg, typically around 0.5mg/kg.
No residual TFE monomer (analytical detection limit 0.05 - 0.01 mg/kg)
was found in PTFE at temperatures below 260°C, the maximum recommended
"continuous service temperature".
No TFE (residual monomer) has been detected in products or articles made
from TFE-based polymer.
The theoretical distribution of TFE into different environmental
compartments has been estimated using the Mackay Level 1 fugacity model
(Mackay and Paterson, 1981) and physico-chemical parameters.After
equilibrium, practically all TFE released into the environment will be
found in the air (99.99%). The amounts in water, soil and sediment are
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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