Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Hydrolysis rate constants cannot be estimated for isononanol with EPI Win. This is because the hydrolysis of an alcohol, i.e. the reaction with water at the C atom bearing the OH-group, would result in the very same alcohol. Therefore, isononanol is stable in water (GUBDH, 2008)

3,5,5 -trimethylhexan-1-ol was not readily biodegradable in the MITI-I test (i.e. OECD 301C) (CERI 2007; NITE; 2002).

The bioconcentration was low in the carp. The values ranged between 4 and 6.3 at test material concentration of 10 µg/L and 3.9 to 8.1 µg/L at 100 µg/L (NITE; 2002).

Model calculations using Mackay Level III fugacity model indicates that the chemical has a strong tendency to absorb to soil following release into soil, air, or water (N.N. 2002).

Note: a full OECD SIDS documentation is available for this chemical which passed the OECD-ICCA/HPV program without further testing, with reference to exposure limitations as it was regarded to be an intermediate; cf. chapter 13 for further details.