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Environmental fate & pathways

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The direct and indirect exposure of the aquatic compartment is unlikely because HDI Trimer 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 141 and 88.7 L/kg wet-wt for the main component HDI Trimer (Isocyanurat, n=3) and its corresponding triamine were obtained (Currenta, 2014e/2014f). Also the corresponding triamine of HDI Trimer (Isocyanurat, n=3) with a bioconcentration factor of 88.7 L/kg wet-wt does not have high bioaccumulation potential (Currenta, 2014f).