Dispersed phase

Definition

The dispersed phase is the phase in a colloidal system that consists of particles distributed throughout another substance, known as the continuous phase. These particles can range in size from 1 nanometer to 1 micrometer.

5 Must Know Facts For Your Next Test

1. The size of dispersed phase particles typically ranges between 1 nm and 1 μm.
2. In colloids, the dispersed phase is suspended within the continuous phase without settling out quickly.
3. The interaction between the dispersed and continuous phases affects properties like viscosity, optical behavior, and stability of colloids.
4. Colloidal systems with a liquid continuous phase can be classified as sols, gels, or emulsions depending on the state of the dispersed phase.
5. The Tyndall effect occurs due to scattering of light by dispersed phase particles.

Related terms

Continuous Phase: The medium or substance in which the dispersed phase is distributed.

Tyndall Effect:

The scattering of light by particles in a colloid or fine suspension.

Emulsion:

A type of colloid where both the dispersed and continuous phases are liquids.