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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 calculated to be 4.21 x 10-10 atm-m3/mole (i.e., equivalent to 0.0000427 Pa-m3/mole)

Key value for chemical safety assessment

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

Additional information

The Henry’s law constant (HLC) of C16 -C18 TMAC was estimated by HENRYWIN v3.20 modeling. The method uses valid Bond contribution values, which are determined for 59 chemical bonds by a least-square analysis of HLCs for 345 organic compounds. The HLC was finally calculated on a weighted-average basis using the mole fractions of the individual components and was found to be 4.21 x 10-10atm-m3/mole (i.e., equivalent to 0.0000427 Pa-m3/mole) (US EPA, 2012). Based on this data, the substance is considered to be non-volatile.