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Physical & Chemical properties

Partition coefficient

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Description of key information

The log octanol-water partition coefficient of (Z)-octadec-9-enol is 7.07.

Key value for chemical safety assessment

Log Kow (Log Pow):
7.07
at the temperature of:
25 °C

Additional information

A predicted log Kow value of 7.07 at 25°C was determined for the substance with the use of a validated QSAR estimation method. The result is considered to be reliable.

Discussion of trends in the Category of C6-24 linear and essentially-linear aliphatic alcohols:

As chain length increases, the free energy required for a molecule to dissolve becomes less favourable for larger molecules. The octanol-water partition coefficient increases with molecular weight because each additional -CH2- group makes the octanol phase more preferred over water in terms of relative solvation energy.