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Elements, Compounds and Mixtures
What are the Physical Methods for Separating Substances?
The separation technique that
is used depends on
the type of substances
that need separating.
The previous
page gives an example of a mixture
that can be separated by using a magnet.
This technique
is not used very often
(except to separate steel
from other recycled
scrap metal)
because there are not many magnetic
substances.
Click
on the links
below
for information
about separating particular types
of substance.
1) Fractional distillation is used for liquids
that mix.
2) A separating funnel is used for liquids that do not mix.
3) Crystallisation is used for a solid that dissolves in a liquid.
4) Filtration is used for a solid that does not dissolve in a liquid.
5) Chromatography is used for
separating components of a mixture.
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