What is the difference between Colloid and Suspension?

The colloid and suspension are known to be connected to each other but they have some differences that people would need to know. Colloids are known to be homogenous while suspensions are known to be heterogeneous. Colloid particles will have the ability to pass through filter paper while the particles that you can find in suspension will not be able to pass through filter paper.

Some may have some problems determining if what they see is a colloid or a suspension. An example of a colloid is gelatin that can be found in water while powdered chalk in water is considered to be a suspension. The particles that come in different sizes are considered to be colloids.

Water solutions of a plethora of substances, quickly pass through plant or animal semipermeable barriers, while others such as gelatin do not pass through them. The first elements are called crystalloids, and the second is called colloids. Colloidal particles are larger and heavier than the ions and most of the molecules, so their diffusion and osmotic pressure are low.

The suspension is a heterogeneous liquid, encompassing insoluble solid particles which are large enough to settle but for some time are present throughout the volume of the liquid matrix. The particles in the colloid cannot be seen with a naked eye. Colloids do not undergo sedimentation, and suspensions are heterogeneous. Colloid particles can pass through filter paper, and suspension particles cannot.