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Environmental fate & pathways

Henry's Law constant

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Reference
Endpoint:
Henry's law constant
Type of information:
(Q)SAR
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Key result
H:
0.001 atm m³/mol
Temp.:
25 °C

The result indicates that p-chloroacetophenone will rapidly volatilize from moist soil to the atmosphere.

The estimated half-life for volatilization of p-chloroacetophenone from a model river 1 m deep flowing at 1 m/sec with a wind speed of 3 m/sec is 4.8 hrs (HSDB).

Conclusions:
The calculated Henry's Law Constant is reported to 9.3E-4 atm m³/m at 25°C.
Executive summary:

Although the calculation method is not reported, the data were taken from a peer-reviewed database and are thus considered to be reliable with restrictions.

Description of key information

The calculated Henry's Law Constant is reported to 9.3E-4 atm m³/m at 25°C.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
94.2
at the temperature of:
25 °C

Additional information

The result indicates that p-chloroacetophenone will rapidly volatilize from moist soil to the atmosphere.

The estimated half-life for volatilization of p-chloroacetophenone from a model river 1 m deep flowing at 1 m/sec with a wind speed of 3 m/sec is 4.8 hrs.

Although the calculation method is not reported, the data were taken from peer-reviewed databases and are thus considered to be reliable with restrictions.