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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water: screening tests

Administrative data

biodegradation in water: ready biodegradability
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
Justification for type of information:
1,3,5-Triazine-2,4,6-triamine, deammoniated is highly insoluble in water and its molar mass is assumed to be well above 500 Dalton. Therefore testing for biodegradation is not justified based on the scientific reasoning that 1,3,5-Triazine-2,4,6-triamine, deammoniated would not be bioavailable due to the absence of the necessary water solubility and due to its molar mass which would make it impossible to cross biological membranes. Because of a lack of water-solubility and the size of the polymer molecules, microorganisms are unable to transport the polymeric material directly into the cells where most biochemical processes take place. They must first excrete extracellular enzymes which depolymerize the polymers outside the cells. Therefore, the biodegradation of polymers is usually a surface erosion process. In most cases polymers will be resistant to biodegradation due to their size and hydrophobicity.

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion