Structural parameters of aqueous NaCl in a high-density supercritical state

The paper presents the results of our theoretical study of the structural properties of a solution of NaCl in water, NaCl: 12.7H₂O, in a high-density supercritical state (ρ = 0.867 g/cm³). These results are compared with the structural parameters of the same system under near-critical conditions with the same density and under standard conditions. The structural state of the supercritical solution is determined by the presence of free water molecules, partially dehydrated ions, and contact ion pairs.