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EC number: 239-491-3 | CAS number: 15471-17-7
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
Calculation with HENRYWIN v3.20 (EPIWIN software by US-EPA), Henry´s Law Constant: 4.6 E-6 Pa*m³/mol
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 prediction for the distribution between aqueous solution and air for the test substance was determined by the computer program HENRYWIN v3.20 (EPIWIN software) by US-EPA (Chemservice S.A., 2011). 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, W., 1803). Sometimes, the term “air/water partition coefficient” refers to the dimensionless Henry´s law constant (HLC) and therefore describes the ration of the equilibrium concentration of a dissolved substance in air and water. The program calculates the Henry´s Law Constant based on the Bond Method of 0.00000459 Pa*m³/mol (4.59 E-006 Pa*m³/mol) at an ambient temperature of 25 °C. The Group Method shows an "Incomplete Result". No GLP criteria are applicable for the usage of this tool, but due to the fact that it is a scientifically accepted calculation method the estimations performed are reliable with restrictions and can be used for the chemical safety assessment.
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