A suspension is a heterogeneous mixture in which very fine particles (10 -7 m) of a solid are dispersed in any medium (liquid or gas). Fine particles of the solid remain suspended in the medium.
What are the properties of suspensions
Following are the characteristics properties of suspensions
i) Heterogeneous nature: a suspension is a heterogeneous system.
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ii) Visibility: the particles in a suspension can be seen with naked eyes or under a simple microscope.
iii) Particle Size: in a suspension, the size of the particles is of the order of 10-7 make or larger.
iv) Sedimentation: the particles in a suspension travel tendency to settle down. Very fine particles, however, remain suspended in the medium.
v) Separation by filtration: Larger particles in a suspension can be separated from the liquid or air by the filtration. Colloids: Colloids are commonly called sols.