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Environmental fate & pathways

Henry's Law constant

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Description of key information

The Henry's law constant (HLC) of p-cresol at 25 °C is reported to be 0.1 Pa m³/mol.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
at the temperature of:
25 °C

Additional information

The distribution of p-cresol between aqueous solution and air is described by the Henry’s law constant.

For p-cresol two results for the Henry's Law Constant are reported.

A thermodynamic method was used to determine the Henry's law constant of p-cresol. At 25°C a value of 0.35 Pa*m³/mol was obtained. Another value of 0.1 Pa*m³/mol at 20°C was reported. The lowest value ist taken into account for assessment.

Both values indicate a low volatility for p-cresol from aqueous solution.