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Environmental fate & pathways

Henry's Law constant

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Description of key information

Henry's Law constants:

- 1,2-Cyclohexanedicarboxylic acid, 4-methyl- (4-MHHPAc): 2.75E-4 Pa-m3/mole

- Hexahydro-4-methylphthalic anhydride (4-MHHPA): 1.19E-3 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 constants of 1,2-Cyclohexanedicarboxylic acid, 4-methyl- (4-MHHPAc), as hydrolysis product of hexahydro-4-methylphthalic anhydride, was considered for the environmental assessment. The value of 2.75E-4 Pa m³/mol shows that 4-MHHPAc is essentially non volatile from surface water.