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EC number: 911-238-8
CAS number: -
The substance is
inherently degradable. 54 % are biodegraded (to CO2) within 28 d in a
test for ready biodegradability under its strict conditions, so that it
can be assumed that Resin 835A is completely mineralized in a WWTP by
adapted microorganisms and only a negligible concentration is expected
in the effluent and thereby in the receiving river.
But even if no or
an ineffective WWTP would be assumed, a concentration of 5 mg/18000 m3 corresponding
to 2.8.10-7mg/l is calculated for the receiving water, that
is according to EUSES a small ditch having by default a flow of 18000 m3/d.
This concentration in the receiving river again is considered to be
negligible. Using more realistic flow
rates of receiving rivers at industrial sites and an effective WWTP
would results in a concentration in fresh water of probably far below 10-10 mg/l.
The logPow of
Resin 835A is high if the Resin is in the undissociated state. The
dissociation constant was calculated to 5.1 so that at environmentally
relevant pH in the neutral range the sparingly dissoluted substance will
be in the dissociated state, which would result in a much lower logPow.
Although formally a candidate for a bioaccumulative substance it is
under realistic conditions probably not bioaccumulative.
This matches with
the determined relatively low adsorption coefficient of logKoc of >0.9
to <2 at pH 6.5 (an environmentally relevant pH). The adsorption
coefficient points to a ca. 10 to 100 times higher concentration in
sediment and soil than in water, so that the concentrations in soil and
sediment are still very low and are also considered to be insignificant.
Resin 835A has a
vapour pressure of ≤0.0001 Pa at 25 °C. A relevant evaporation and a
transport of the substance by air is therefore considered to be not
As Resin 835A is
a sticky substance produced and used as flakes, no dust and no transfer
of dust by air is expected.
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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