Registration Dossier
Registration Dossier
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EC number: 201-604-9 | CAS number: 85-42-7
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
Henry's Law constants:
- hexahydrophthalic acid (HHPAc): 2.71E-4 Pa-m3/mole
- cyclohexane-1,2-dicarboxylic anhydride (HHPA): 6.52E-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 constants of hexahydrophthalic acid (HHPAc), as hydrolysis product of cyclohexane-1,2-dicarboxylic anhydride (HHPA), was considered for the environmental assessment.
The value of 2.71E-4 Pa m³/mol shows that HHPAc is essentially non volatile from surface water.
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