Sol vs Gel
The present post discusses about the Difference between Sol and Gel. Sol, Gel and Emulsion are the different states of colloidal solutions.
Sol: The liquid state of a colloidal solution is called the sol.
Gel: The solid or semi-solid (Jelly like) stage of a colloidal solution is called the gel.
Difference between Sol and Gel
Sl. No. Sol Gel
1 Definition: The liquid state of a colloidal solution is called sol. Definition: The solid or semi-solid (Jelly like) stage of a colloidal solution is called gel.
2 The sol does not have a definite structure. The gel possesses honeycomb like structure.
3 The dispersion medium of the sol may be water (hydrosol) or alcohol (alcosol). The dispersion medium of gel will be hydrated colloid particles.
4 The sol can be converted to gel by cooling. The gel can be converted to sol by heating.
5 The sol can be easily dehydrated. The gel cannot be dehydrated.
6 The viscosity of the sol is very low. The viscosity of the gel is very high.
7 Sol is categorized into lyophobic and lyophilic sols. There is no such classification of gel.
8 Example: Blood Example: Fruit jelly, cooked gelatin jelly
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