Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water and sediment: simulation tests

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

A biodegradation in water and sediment simulation test does need not to be conducted. A log kow of -3 (at 25 °C) and a determined log Koc < 1.3 indicate low potential for adsorption to solid soil/sediment . Thus, a simulation test on biodegradation in water and sediment does not need to be conducted.

Key value for chemical safety assessment

Additional information

A biodegradation in water and sediment simulation test does need not to be conducted, if the substance can be expected to have a low potential for adsorption to the sediment. A log kow of -3 (at 25 °C) was determined which indicates low potential for adsorption to sediment (log kow < 3; following REACh guidance Document R7.1.15.4). Additionally, the determined log Koc < 1.3 indicates low potential for adsorption to solid soil/sediment (following Table R.7.11-2, REACh-Guidance Documents). Thus, a simulation test on biodegradation in water and sediment does not need not to be conducted.

For risk assessment it has to be assumed that melamine is not degraded in surface water.  The pathway and the degradation products of melamine were determined. Melamine has a low toxicity to aquatic organisms, not leading to a classification. Melamine does not bioaccumulate. Melamine is not a PBT or a vPvB substance. Thus, there is no need to investigate the degradation of the target substance and its degradation products.

 

Supporting results are reported by: Fimberger, 1997 (see IUCLID section 5.2.1), Pagga, 1991 (BASF SE), (see IUCLID section 5.2.1), Hauck, 1964 (see IUCLID section 5.2.3), Jutzi, 1982 (see IUCLID section 6.5) , Bollag, 1991 (see IUCLID section 6.5).