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Environmental fate & pathways

Henry's Law constant

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Description of key information

The Henry's law constant was estimated to be 4.8 Pa m³/mol according to "Guidance on information requirements and chemical safety assessment Chapter R.16: Environmental Exposure Estimation".

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
4.8
at the temperature of:
285 K

Additional information

The Henry's law constant of the L-Menthol was calculated in accordance with "Guidance on information requirements and chemical safety assessment Chapter R.16: Environmental Exposure Estimation". In the guidance, Henry's law constant = VP × MOLW / SOL.

VP was derived from section 4.6 of this dossier ----19 Pa @ 25 C degrees (298 K) ---- 11 Pa at 285 K;

SOL was derived from section 4.8 of this dossier ---397 mg/l @ 20 C degrees (293 K) ---- 356 mg/l at 285 K.

MOLW ---- 156.27 g/mol

Thus, the Henry's law of L-Menthol at 285 K is 4.8 Pa m3 / mol.