5 Examples of Chemical Suspensions

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Helmenstine, Anne Marie, Ph.D. "5 Examples of Chemical Suspensions." ThoughtCo, Apr. 7, 2017, thoughtco.com/examples-of-chemical-suspensions-609186. Helmenstine, Anne Marie, Ph.D. (2017, April 7). 5 Examples of Chemical Suspensions. Retrieved from https://www.thoughtco.com/examples-of-chemical-suspensions-609186 Helmenstine, Anne Marie, Ph.D. "5 Examples of Chemical Suspensions." ThoughtCo. https://www.thoughtco.com/examples-of-chemical-suspensions-609186 (accessed October 22, 2017).
This is a close-up look at a suspension of mercury droplets in oil.
This is a close-up look at a suspension of mercury droplets in oil. DR JEREMY BURGESS, Getty Images

A suspension in chemistry is a mixture made up of particles in a fluid. Most of the suspensions you encounter in everyday life consist of solid particles in a liquid, but suspensions could also form from two liquids or even a solid or liquid in a gas. One key way to identify a suspension is that the components can separate over time. The particles do not dissolve in the fluid.

Here are 5 examples of suspensions:

  1. mercury shaken in oil
  2. oil shaken in water
  3. powdered chalk in water
  4. dust in air
  5. soot in air

Mixing or shaking needs to occur to form a suspension. Given time, suspensions usually separate on their own.

Compare With Colloids

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Helmenstine, Anne Marie, Ph.D. "5 Examples of Chemical Suspensions." ThoughtCo, Apr. 7, 2017, thoughtco.com/examples-of-chemical-suspensions-609186. Helmenstine, Anne Marie, Ph.D. (2017, April 7). 5 Examples of Chemical Suspensions. Retrieved from https://www.thoughtco.com/examples-of-chemical-suspensions-609186 Helmenstine, Anne Marie, Ph.D. "5 Examples of Chemical Suspensions." ThoughtCo. https://www.thoughtco.com/examples-of-chemical-suspensions-609186 (accessed October 22, 2017).