defined via liquid-phase amount fraction and partial pressure
symbol: $H_{\rm{s}}^{xp}$, unit: $\pu{Pa-1}$
symbol: $H_{\rm{s}}^{xp}$, unit: $\pu{Pa-1}$
https://doi.org/10.1351/goldbook.09025
Amount fraction \(x\) of a species in the liquid phase divided by the partial pressure \(p\) of that species in the gas phase under equilibrium conditions at infinite dilution: \[H_{\rm{s}}^{xp}: = \underset{x \to 0}{\rm{lim}}\frac{x}{p}\]
Note: The coherent SI unit for \(H_{\rm{s}}^{xp}\) is \(\pu{Pa-1}\).
Example: The Henry solubility (defined via liquid-phase amount fraction and partial pressure) of ozone in water at \(T = \pu{298.15 K}\) is \(H_{\rm{s}}^{xp}(\ce{O3}) = \pu{1.8E-9 Pa-1}\).
See also: Henry’s law solubility constant