Registration Dossier

Administrative data

Endpoint:
Henry's law constant
Type of information:
calculation (if not (Q)SAR)
Study period:
not applicable
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Reference
Reference Type:
other: calculation
Title:
Guidance on information requirements and chemical safety assessment (IR & CSA) Chapter 16 "Environmental exposure estimate"
Author:
ECHA
Year:
2012
Report Date:
2016

Materials and methods

Test guideline
Qualifier:
no guideline followed
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid

Results and discussion

Henry's Law constant H
Key result
H:
2.14 Pa m³/mol
Temp.:
25 °C
Remarks on result:
other: Henry´s law constant is calculated based on temperature-corrected experimental vapour pressure and water solubility.

Applicant's summary and conclusion

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 2.14 Pa m³/mol at 25°C.
Executive summary:

The Henry´s Law constant of butyl benzoate was determined.Henry´s law states that the solubility of a gas in a liquid solution at a constant temperature will be proportional to the partial pressure of the gas which is above the solution (Henry, 1803). Sometimes, the term “air/water partition coefficient” refers to the dimensionless Henry´s law constant (HLC) and therefore describes the ratio of the equilibrium concentration of a dissolved substance in air and water. This parameter is calculated based on temperature-corrected experimental vapour pressure and water solubility. A low Henry´s Law Constant (2.14 Pa m3/mol) was calculated for the test item at 25 °C.


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