Grade 6Physical Chemistry
why is collodial Sol stable
1 Answer
Suraj Prasad
The stability of colloidal solutions varies in a very wide range: their life lasts from fractions of a second to hundreds of years. It depends on many factors: particles' size and concentration, process temperature, presence of electrolytes. In lyophobic systems, by adding electrolytes the coagulation rate increases sharply. At the same time, adding a lyophilic colloid to a lyophobic sol can slow down the coagulation process and make a kinetically stable colloidal system.
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