What are the 8 differences between soles and gels?

Sol, Gel, and Emulsion are various conditions of colloid solution. Sol is the liquid state of a colloidal solution called a sol. Gel is a solid or semi-solid stage (like Jelly) from a colloidal solution called a gel.

Definition of sol

Sol is a colloid made of very small solid particles in a continuous liquid medium. Sol is quite stable and shows Tyndall effect. Examples include blood, pigmented ink, cell fluids, paints, and mud.

Artificial soles can be made by dispersion or condensation. Dispersion techniques include grinding solids to colloidal dimensions by ball milling and the Bredig arc method. The stability of the sol can be maintained by using a dispersing agent.

Soles are usually used as part of the sol-gel process. Insoles generally have a liquid as a dispersing medium and solids as a dispersed phase.

Understanding gel

A gel is a complex liquid consisting of two or more phases which usually consists of solids dispersed in a liquid. The majority of their mass is liquid, but they exhibit properties of solids, such as non-zero melting stress. These extraordinary characteristics can be related to the formation of spatial or pervasive tissues that are built from solid components and influence each other between this structure and the fluid. Because of their unique nature, these materials have commercial significance and academic interest.

Colloidal Properties (applies to sol)

  1. Heterogeneous mixture
  2. Colloidal size varies from 1 nm - 100 nm
  3. They show the Tyndall effect
  4. They are quite stable and hence they do not settle when left undisturbed
  5. Table of Differences between Sol and Gel

Definition: The liquid state of a colloid solution is called a sol.
Definition: The solid or semi-solid stage (like Jelly) of a colloidal solution is called a gel.
Sol does not have a definite structure.
Gel has a honeycomb structure.
Sol dispersion media can be in the form of water (hydrosol) or alcohol (alcosol).
Gel dispersion media will become hydrated colloidal particles.
The sol can be converted to gel by cooling.
Gel can be converted into soles by heating.
Sol can easily dehydrate.
The gel cannot be dehydrated.
The viscosity of soles is very low.
The viscosity of the gel is very high.
Soles are categorized into lyophobic and lyophilic soles.
There is no such classification of gel.
Example: Blood
Example: Fruit jelly, cooked jelly