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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Log Pow is taken as 3.41 at 25 deg C

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
20 °C

Additional information

Experimental value of 3.41 has been obtained in unbuffered solution. The calculated value is 4.5. These differences illustrate the difficulties in establishing log Pow values for the esters of chemically modified rosins, i.e. chemically modified UVCB substances. Although relatively consistent with one another, the experimental values for log Pow has been preferred to an averaged value or the calculated value.