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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Physical & Chemical properties

Partition coefficient

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Description of key information

The partition coefficient was calculated for three main components of the test material. For each component this was estimated to be as follows:  cholesterol was log10 Pow 8.73;  Lanosta-8,24-dien-3-ol (lanosterol) log10 Pow  was 10.79 and 1 -Hexadecanol was log10 Pow 6.73.

Key value for chemical safety assessment

Additional information

No determination of partition coefficient by Method A8 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC) was possible.

The partition coefficient was therefore estimated by a WSKOW (v1.41); Estimation Programs Interface Suite™ for Microsoft® Windows, v 4.00. UnitedStates Environmental Protection Agency.

The partition coefficient was calculated for three main components of the test material. For each component this was estimated to be as follows: cholesterol was log10 Pow 8.73; Lanosta-8,24 -dien-3 -ol (lanosterol) log10 Pow was 10.79 and 1 -Hexadecanol was log10 Pow 6.73.