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Physical & Chemical properties

Partition coefficient

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Description of key information

Log Kow by the ratio of the measured solubilities in octanol and in water separately

Key value for chemical safety assessment

Log Kow (Log Pow):
5.7
at the temperature of:
22 °C

Additional information

The estimation of the log Kow based on the ratio of the solubility of the Solvent Black 46 in octanol and in water separately was the only applicable method.

The log Kow value was calculated to be between 5.7 and the infinity. Indeed the hydrosolubility tends toward 0 and depends on the protocol used to perform the test. Therefore, the calculated log Kow value is not accurate and uncertain. But in order to perform the chemical safety assessment in a worst case scenario, the minimal value of 5.7 is selected.