Henry’s law volatility constant (via p and c)

defined via partial pressure and amount concentration
symbol: $H_{\rm{v}}^{pc}$, unit: $\pu{Pa m3 mol-1}$

https://doi.org/10.1351/goldbook.09023

Partial pressure $p$ of a species in the gas phase divided by the amount concentration $c_{\rm{l}}$ of that species in the liquid phase under equilibrium conditions at infinite dilution: \[H_{\rm{v}}^{pc}: = \underset{c_{\rm{l}} \to 0}{\rm{lim}}\frac{p}{c_{\rm{l}}}\]

Note:
The coherent SI unit for $H_{\rm{v}}^{pc}$ is $\pu{Pa m3 mol-1}$.

Example:
The Henry volatility of ozone in water at $T = \pu{298.15 K}$ is $H_{\rm{v}}^{pc}(\ce{O3}) = \pu{1.0E4 Pa m3 mol-1}$.

See also: Henry’s law volatility constant

Source:
PAC, 2022, 94, 71. 'Henry’s law constants (IUPAC Recommendations 2021)' on page 76 (https://doi.org/10.1515/pac-2020-0302)