A systematic study on the salting effect of some kosmotropic salts on some aliphatic alcohols: study of the phase separation ability using cloud point titration method

When a kosmotropic salt was added to an aqueous solution of an aliphatic alcohol, the system becomes an immiscible aqueous biphasic system (ABS), above a critical concentration of electrolyte. On the other word, the hydrated ions of the electrolyte enforce the alcohol to exclude from the rest of the solution as an independent phase. Thus the alcohol molecules were “slated-out”, and separated to form an ABS [۱]. Ananthapadmanabhan and Goddard [۲] was studied the salting effect of some salts on polymers. However there is no report on the systematic study of the slating effect of different kosmotropic salts on different alcohols in the literature. In this respect, we measured the binodal curves of some aliphatic alcohols + some kosmotropic salts to study the salting effect of these systems.

کلیدواژه ها:

Salting effect ، Free Energy of Hydration ، Cloud point ، Kosmtropicity