Hydration Processes in HCl and Aqueous Salt Solutions.

This article explores the hydration of ions in dilute aqueous solutions of various electrolytes. The researchers studied the hydration numbers of ions in solutions of KCl, KBr, KI, HCl, LiCl, CsCl, and NaCl using a refractometric method. They also investigated the effect of polyethylene glycol (PEG-6000) on the hydration processes in solutions of KCl and KBr. The results showed that the introduction of PEG into the solution decreased the hydration numbers of ions, likely due to the competition between PEG oxygen atoms and ions for interaction with water molecules. This research provides valuable insights into the hydration processes in aqueous solutions of salts and the impact of polymers on these processes. [Extracted from the article]