Registration Dossier
Registration Dossier
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EC number: 201-152-2 | CAS number: 78-87-5
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
The measured Henry’s Law Constant, 2.82 x 10e-3 atm-m3/mol at 25 C, was taken as representative for 1,2-dichloropropane. A value of 2.07 x 10e-3 atm-m3/mol was reported at 20 C.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 0.002
- at the temperature of:
- 20 °C
Additional information
Henry’s Law constants for 1,2-dichloropropane have been measured experimentally at different temperatures by several investigators. The experimentally measured values were generally consistent, and in excellent agreement with calculated values. The measured Henry’s Law Constant, 2.82 x 10e-3 atm-m3/mol at 25 C (2.07 x 10e-3 atm-m3/mol at 20 C), was taken as representative for 1,2-dichloropropane. The magnitude of the Henry’s Law constant indicates that 1,2-dichloropropane is expected to volatilize from soil and water.
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