Write a note on Dialysis.

Explanation

Dialysis is a process used to remove true solution or excess electrolyte impurity from a colloidal solution by means of diffusion through a suitable membráne. In this method, an impure colloidal solution is taken in a semi permeable membrane (parchment paper bag) and it is kept in a vessel containing moving water. The true solution impurities diffuse through the membrane into the outer water leaving pure colloidal solution in the parchment paper bag .