3-C12-18-(even numbered)-alkylamido-N,N-dimethylpropan-1-amino oxide

Henry's Law constant

Link to relevant study record(s)

Reference

Endpoint:

Henry's law constant

Type of information:

calculation (if not (Q)SAR)

Adequacy of study:

key study

Study period:

not applicable

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

accepted calculation method

Qualifier:

no guideline followed

Principles of method if other than guideline:

This parameter is calculated from temperature corrected experimental vapour pressure and water solubility. Henry's Law Constant equation: (vapour pressure*molecular weight)/(water solubility*1000)

GLP compliance:

no

H:

10.8 Pa m³/mol

Temp.:

12 °C

Remarks on result:

other: Henry's law constant calculated at environmental temperature (12°C)

Key result

H:

22.6 Pa m³/mol

Temp.:

25 °C

Remarks on result:

other: Henry's law constant calculated based on temperature-corrected experimental vapour pressure and water solubility.

Conclusions:

A scientifically accepted calculation method is used to determine the Henry's Law Constant. No GLP criteria are applicable for the usage of this tool and the estimation is easily repeatable. The Henry's Law Constant of the substance was estimated to be 22.6 Pa.m³/mol at 25°C.

Description of key information

The Henry's law constant was determined using a scientifically accepted calculation method based on the experimental water solubility and experimental vapour pressures of the test substance. The Henry's Law Constant of the substance was estimated to be 22.6 Pa.m³/mol at 25°C. The value indicates that a low rate of volatilisation from surface water is expected.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):

22.6

at the temperature of:

25 °C