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EC number: 204-126-9
CAS number: 116-14-3
There are no data on the biodegradation of TFE, and meaningful studies
are difficult to perform since the substance is a gas. Highly
fluorinated compounds such as TFE are not expected to biodegrade rapidly
(BIOWIN 6 MITI non-linear model, Boethling et al 1994). However, on the
basis of the high value for Henrry's law constant (92 109 Pa.m3/mol)
(Oriani 2001), TFE is expected to volatilise from aquatic media into the
atmosphere. The half-life for volatilisation from a model river (1m
depth, 1 m/s current) and 3 m/s wind speed was calculated to be 2.9
hours (Lyman et al, 1990). Hence TFE is not expected to be persistent in
the aquatic environment.
The low log Kow value of 1.21 also suggests that TFE released into water
is not expected to adsorb to sediment or suspended solids.
If released to soil, owing to its low Kow value, TFE is expected to have
high mobility in soil. Volatilisation from wet and dry soil surfaces is
expected to be an important fate process, based upon the Henry's Law
constant and this compound's high vapour pressure. Therefore TFE is not
expected to persist in soil.
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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