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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

Diphosphoric acid, compound with 1,3,5-triamine (1:2) is not stable in the environment. The substance will dissociate in aqueous environments forming melamine and pyrophosphate ions, respectively. The pyrophosphate ions will ultimately be hydrolysed to orthophosphates. Orthophosphates and melamine ions are stable to hydrolysis since they do not contain any chemical groups subject to hydrolysis. Thus abiotic degradation is no relevant degradation pathway for both dissociation products. Biodegradation is only relevant for the organic component melamine. However, an available test on the ready biodegradability of melamine observed no biodegradation under test conditions but rapid degradation by adapted activated sludge was demonstrated for melamine.