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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Description of key information

The uvcb substance is not readily biodegradable but the main
constituents hydrolyse fast.
The log Pow of the remaining major constituents and proposed
degradation products formaldehyde (CAS 50-00-0, logPow 0.35),
diethanolamine (CAS 111-42-2, logPow -2.46 at 25°C, pH 6.8-7.3)
and tolyltriazole (CAS 29385-43-1, logPow 1.08 at 25°C, pH 7-8)
is below 3.
However, the BCF for the main component of the uvcb substance was
calculated to be approx. 0.897- 3.16 L/kg ww (BCF) using EPI Win
BASF SE, 2013). Secondary poisoning is therefore, highly unlikely
to occur in any extent for the test item.

Key value for chemical safety assessment

Additional information