Tyndall effect is the scattering of light by particles in a colloid or else particles in a very fine suspension.
- e.g.It can be observed when sunlight passes through the canopy of a dense forest.
Dispersed phase
The solute-like component of the dispersed particles in a colloid form the dispersed phase.
Dispersion medium
The component in which the dispersed phase is suspended is known as the dispersing medium.
Aerosol
A colloidal solution with dispersed phase solid/liquid and dispersing medium gas is called Aerosol. e.g. clouds
Foam
A colloidal solution with dispersed phase gas and dispersing medium solid/liquid is called Foam. e.g.Shaving cream.
Sols
A colloidal solution with dispersed phase solid and dispersing medium liquid is called Sol. e.g. Milk of magnesia, mud.
Gels and emulsions
- A colloidal solution with dispersed phase liquid and dispersing medium solid is called Gel.
- A colloidal solution with dispersed phase liquid and dispersing medium liquid is called Emulsion.
Emulsion and gel are two distinct chemical compounds. A gel is a semisolid substance, but an emulsion is a liquid, which is the main distinction between the two. Nevertheless, depending on their intended use, some emulsions can exist in a semisolid condition. Fruit jellies, a gelatinous substance, creams, etc.