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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Description of key information

The direct and indirect exposure of the aquatic compartment is unlikely because HDI Trimer asym. hydrolysis completely in water within far less than 12 hours at environmental relevant concentrations. For this reason, an experimental study is not useful, and calculated values were used. Bioconcentration factors (BCF) of 706 and 10.1 L/kg wet-wt for the main component HDI Trimer (Isocyanurat, n=3) and its corresponding triamine were obtained. Also the corresponding triamine of HDI Trimer (Isocyanurat, n=3) with a bioconcentration factor of 10.1 L/kg wet-wt does not have high bioaccumulation potential.

Key value for chemical safety assessment

BCF (aquatic species):
706 L/kg ww

Additional information