Registration Dossier

Diss Factsheets

Physical & Chemical properties

Partition coefficient

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Estimated based on solubility ratio:

log Pow= 0.04 at 23 °C

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
23 °C

Additional information

To measure the partition coefficient of pigments utilising the standard OECD Guideline 107 is extremely difficult because of the problems associated with the inherent very low solubilities.

The procedure is used for determining the LogPow of low solubility substances, and in particular that of pigments. The method is based on the ETAD guideline ETAD-229, which in turn is based in part on the water solubility method (shaken flask) OECD 105. The LoD is 6 µg/L.