What is lyophilic colloids coagulation?

Lyophilic sols are very stable, there are strong interaction forces between the dispersed phase and dispersion medium. These are strong sols and can be coagulated by the following methods.

1) By the prolonged electrophoresis, the ions are combining and neutralized coagulate.

2) By the addition of electrolyte in large amounts such that oppositely charged ions are added in more proportions which cause neutralizes of oppositely charged ions leading to coagulation.

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