Definition of Suspensions

Definition of Suspensions

Suspension is a heterogeneous mixture in which particle size of one or more components is greater than 1000nm.When mud is dissolved in water and stirred vigorously; particles of mud are distributed evenly in water. After some time, the particles of this solution settle under water due to influence of gravity. This solution is an example of Suspension (see picture below). Contrary to True Solution, particles of suspension are big enough to be seen with naked eye.

Also Check: Baking Soda | Epsom salt | Glucose | Amino Acids

Related Links: Periodic Table Element | Metal | Electogravity

Difference between True Solution, Suspension and Colloidal Solution

The table given below summarizes the major properties and points of distinction between each type of solution with respect to different properties.

Characteristics of suspension

1. A suspension is of heterogeneous nature- There are two phases. The solid particles represent one phase while the liquid in which these are suspended or distributed forms the other phase.
2. The particle size in a suspension is more than 100 nm (or 10–7m).
3. The particles in a suspension can be seen with naked eyes and also under a microscope.
4. The solid particles present in the suspension can be easily separated by ordinary filter papers. No special filter papers are needed for the purpose.
5. The particles in a suspension are unstable. They settle down after sometime when the suspension is kept undisturbed. This is known as precipitate.
6. It should be noted that suspension-and precipitate are actually the same. The particles of the solid in the suspended form represent suspension. When they settle, a precipitate results.