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Physical & Chemical properties

Partition coefficient

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Description of key information

The partition coefficient of Pyrazole is 0.33 at 25 °C and pH 7.

Key value for chemical safety assessment

Log Kow (Log Pow):
0.33
at the temperature of:
25 °C

Additional information

A study was conducted according to OECD 117 to determine the partition coefficient of pyrazole. Using the HPLC method the partition coefficient of Pyrazole was determined to be 0,33 at 25°C and pH 7. Furthermore a literature review was conducted. SRC PhysProp reported the partition coefficient of Pyrazole, based on experimental data, to be 0.26 at 25°C. The Sangster log Kow data base
reported the partition coefficient of Pyrazole, also based on experimental data, to be 0.26 at 25°C. The values ar eall in the same range.
The value from the study was chosen as key value for the partition coefficient.