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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 Pow  was determined using high performance liquid chromatography. As the test substance is a mixture (UVCB substance), the partition coefficient (Pow) of Reaction product of 2-hydroxybenzoic acid, styrene and oxozinc is given as a range. The log Pow was determined to lie within 2.78 +/- 0.00 and 5.64 +/- 0.01 (95% confidence interval). 

Key value for chemical safety assessment

Additional information

The partition coefficient Pow was determined using high performance liquid chromatography based on a calibration curve with eight reference items. The capacity factors k were calculated from the dead time and retention times of the reference substances. As the test substance is a mixture (UVCB substance), the partition coefficient (Pow) of Reaction product of 2-hydroxybenzoic acid, styrene and oxozinc is given as a range. The log Pow was determined to lie between 2.78 +/- 0.00 and 5.64 +/- 0.01 (95% confidence interval).