Types of Colloids

ON THE BASES OF THE INTERACTION OF THE PARTICLES, MOLECULES OR IONS OF THE DISPERSED PHASE WITH THE MOLECULES OF THE DISPERSION MEDIUM:

1. LYOPHILIC COLLOIDS

2. LYOPHOBIC COLLOIDS

3. ASSOCIATION COLLOIDS

LYOPHILIC COLLOIDS

In this system dispersed particles have a greater affinity to the dispersion medium (solvent).The dispersion medium forms a sheath around the colloidal particles and solvates. This makes the dispersion thermodynamically stable.

LYOPHOBIC COLLOIDS

Colloids is composed of materials that have little attraction (solvent hating), is possible between the dispersed phase and dispersion medium.

These are the lyophobic colloids and their properties differ from those of the lyophilic colloids. This is due to primarily the absence of a solvent sheath around the particles.

ASSOCIATION COLLOIDS 

In this system certain molecules or ions called In this system certain molecules or ions called or surface active amphiphiles agents, are characterized by having two distinct regions of opposing solution affinities within the same molecule or ion when present in a liquid medium at low concentration, are called sub colloids.