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Environmental fate & pathways


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Description of key information


Key value for chemical safety assessment

Additional information

For this endpoint, the read across between PWH/ammonium and PWH/sodium salt is valid, because this environmental property is defined by the main component.The read across justification that takes into account the ammonium ion properties is attached on section 13 of the dossier.

Based on Annex VII column 2 of REACH Regulation the study has not to be conducted if the substance is readily biodegradable.

Dissociation is the behaviour related to the ammonium salified UVCB substance.