Adsorption: The process wherein a collection of the
molecules or ions a type of substance on the surface of other occurs by
definite cohesive forces.
Absorption: The process wherein there is a uniform
diffusion of one substance through the bulk of another substance.
Colloids: A suspension of very small particles in
fluid. Particles are not seen and do not settle out, but they scatter light.
Lyophobic Sols: The lyophobic sols are formed by substances that do not give
colloidal solutions when in contact with the dispersion medium.
Lyophilic Sols: The dispersed phase
readily passes into colloidal solution when in contact with the dispersion
Gels: A mixture of solid and liquid, wherein, the solid forms
a network that traps the liquid so that it cannot flow freely.
Hardy-Schulze's Rule: The coagulating power of an
electrolyte increases with increase in valency of
the ions added.
Emulsions: A mixture of two immiscible liquids where
they are made miscible by an emulsifier.
Oil-In-Water Emulsion: This has water as the continuous
phase and oil as the dispersed medium.
Water-In Oil Emulsion: Oil forms the continuous phase, while
water is the dispersed phase.