Abstract
The method of integral equations in XRISM-approximation was used to calculate structural parameters of the RbF aqueous solutions in the concentration range 2.22–11.1 m at standard conditions (T = 298 K, p = 0.1 MPa). Based on these data, we have determined the concentration limit for the existence of solvent in the solution in tetrahedral structure (3.08 m) and the concentration patterns of structuring the RbF-H2O system. Upon increase in the concentration from 2.22 to 11.1 m the system is shown to undergo the coordination dehydration of the ions with simultaneous increase of the ionic association with a possibility to form the ionic and ion-water cluster-type groups.
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