Colloidal Solutions and Suspensions

Vocabulary flashcards covering the properties, examples, and types of suspensions and colloidal solutions based on the provided lecture notes.

Suspension (Undisturbed Condition)

A condition in an unstable suspension where particles settle down, the suspension breaks, and it does not show the Tyndall Effect.

Suspension (Disturbed Condition)

A condition in a suspension where particles do not settle down and it shows the Tyndall Effect.

Suspension Examples

Examples include sand in $H_2O$, oil, muddy water, and chalk in $H_2O$.

Colloidal Solution Particle Size

Particle size ranging from $1\text{ nm}$ to $100\text{ nm}$, which lies between a true solution and a suspension.

Colloidal Solution

A stable mixture whose solute particles cannot be seen through naked eyes; appears homogeneous but is actually heterogeneous due to particle size, and shows the Tyndall effect when a beam of light passes through it.

Dispersed Phase

The solute part in a colloidal solution, present in less quantity.

Dispersing Medium

The solvent part in a colloidal solution, present in large quantity.

Fog, Mist

An aerosol type colloid with liquid as the dispersion medium and gas as the dispersed phase.

Smoke, Exhaust

An aerosol type colloid with solid as the dispersion medium and gas as the dispersed phase.

Milk, Vanishing Cream (oil in water)

An emulsion type colloid with liquid (oil) as the dispersion medium and liquid (water) as the dispersed phase.

Cold Cream, Butter (water in oil)

An emulsion type colloid with liquid (water) as the dispersion medium and liquid (oil) as the dispersed phase.