Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Adsorption / desorption

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Administrative data

Link to relevant study record(s)

Description of key information

The adsorption/desorption coefficient of BMH has been calculated using the methods described in the Technical Guidance Document on Risk Assessment (1996). Several chemical classes can be considered for the calculation of the log Koc for BMH: hydrophobics, alcohols, phenols, acetanilide and non-hydrophobics (default QSAR), all applying different QSAR’s. The log Koc's found with all methods range from a log Koc of 1.16 to a log Koc of 1.97 and are therefore considered to be comparable.

Key value for chemical safety assessment

Koc at 20 °C:
80.2

Additional information

A log Koc for BMH of 1.9 was taken as key value for the Chemical Safety Assessment, as it was also taken as key value for the registration dossier and there is no need to deviate from this approach for this registration update, given the low potential for adsorption of the substance and the comparable obtained results. This log Koc has been calculated using the method described in the Technical Guidance document on Risk Assessment (1996), for the chemical class non-hydrophobics (default QSAR). In view of the log Koc of 1.9, the substance is expected to be slightly mobile in soil.