Uploaded October 2023 | Updated September 2026, 2 days ago

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In this video, we look at filtration and crystallisation, which are both examples of physical separation techniques. First, I discuss how filtration is used to separate an insoluble substance from a liquid. Then we look at how to set up the filtration apparatus. We then look at how to separate a soluble substance from a solvent by crystallisation. Finally, we explore the use of state symbols.

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Image credits:

Filtration
commons.wikimedia.org/wiki/File:Gravity_Filtration.jpg
Suman6395, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons