Elements, Compounds and Mixtures
What is Filtration?
Filtration is a separation
technique that is
used to separate a solid that has
not dissolved in a liquid (for example a precipitate).
A filter paper is placed inside a
and a container put beneath.
of the solid and liquid
is placed into the filter paper.
The liquid flows through the filter paper and in to the container.
The liquid in the container is called the filtrate.
The solid that remains in
the filter paper is called the
The residue can be dried by spreading it out on the filter paper
and allowing the liquid to evaporate.
A solid that dissolves
in a liquid
can be separated by crystallisation.
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