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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

The substance is not biodegradable and poorly eliminated from water

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

In a CO2/DOC combination test under enhanced test conditions according to ISO DIS 9439 using amantadine hydrochloride a biodegradation of less than 10% was determined after an exposure period of 60 days (BASF SE, 2012). Additionally, tests on the inherent biodegradability are available for an aqueous solution of adamantyltrimethylammoniumhydroxid (BASF AG, 2007), an aqueous solution of N,N,N-trimethyl-1-adamantanaminium sulfate (BASF AG, 2008) and for 1 –adamantyldimethylamine (BASF AG, 2007). In all tests an elimination from water of less than 10% was observed during the exposure period. Therefore adamantan and its derivatives have to be considered to be not biodegradable.