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EC number: 947-582-0 | CAS number: -
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
Using the representative structures of the
target substance (Benzene, mono-C10-13-alkyl derivs., distn. residues,
sulfonated, barium salts), both prediction tools give an "incomplete
result".
Calculation with EUSES 2.1: 0.52 Pa*m³/mol (Henry's law constant at
25°C) and 0.249 pa*m³/mol (Henry's law constant at environmental
temperature).
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 0.52
- at the temperature of:
- 25 °C
Additional information
The Henry´s Law constant of the barium sulfonate target substance (Benzene, mono-C10-13-alkyl derivs., distn. residues, sulfonated, barium salts) was determined by using EUSES v2.1.1 (Chemservice S.A., 2018d). 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 from temperature corrected experimental vapour pressure and water solubility. A Henry´s Law Constant of 0.52 Pa*m³/mol was calculated for the barium sulfonate target substance (Benzene, mono-C10-13-alkyl derivs., distn. residues, sulfonated, barium salts) at 25 °C (using either LogKow value of -3.8 or 5.2). Moreover, a Henry's law constant at environmental temperature of 0.249 Pa*m³/mol has been calculated.
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