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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Description of key information

The log partition coefficients for substances in the category Rosin, hydrogenated rosin and their salts range from 0.74 to >6.5.


The log partition coefficient of Resin acids and rosin acids, potassium salts ranges from 3.1 to 5.9 in unbuffered media; in media adjusted to pH 2 log Pow range from 3.0 to >6 (7.0).



Key value for chemical safety assessment

Additional information

A GLP-compliant study, conducted according to OECD Guideline 117 (HPLC Method), was provided for Resin acids and Rosin acids, potassium salts (Inveresk Research, 2003a)