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Environmental fate & pathways

Henry's Law constant

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Description of key information

Henry's Law constant (HLC):

3-methylcyclohex-4-ene-1,2-dicarboxylic acid (3-MTHPAc D4): 2.73E-4 Pa-m3/mole

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
0
at the temperature of:
25 °C

Additional information

The Henry's Law constant of 3-methylcyclohex-4-ene-1,2-dicarboxylic acid (3-MTHPAc D4), as hydrolysis product of 1,2,3,6-tetrahydro-3-methylphthalic anhydride (3-MTHPA D4) was estimated to be 2.73E-4 Pa m³/mol at 25°C and is taken into account for further assessments.

The value of 2.73E-4 Pa m³/mol indicates that 3-MTHPAc D4 is essentially non volatile from surface water.