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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

According to a Mackay Level I model calculation, the main target compartment for decamethylenediamine will be the hydrosphere (99.95 %). The calculated Henry’s Law constant of 0.00058 Pa m³/mol at 20 °C indicates low volatility of decamethylenediamine from surface waters. With a Koc of 158489 a very high sorption potential is expected (Blume scale).

The QSAR calculated rate constant for the OH sensitized photodegradation of decamethylenediamine is approximately 74.67E-12 cm3/(molecule * s). At 500,000 OH radicals / cm3 (typical for central Europe), this corresponds to a half-life of 5.2 hours (24-hour days). Hydrolysis is not expected to be a relevant process in the environment. Ready biodegradation was observed and is expected to be the predominant process for the removal of decamethylenediamine from the environment. The partition coefficient n-octanol / water of log Kow = 0.3 indicates negligible potential for bioaccumulation.