Elements, Compounds and Mixtures
What is a Separating Funnel?
A separating funnel
is a glass funnel with a tap at the bottom.
A separating funnel is a separation
technique that is used for
two liquids
that do not dissolve in
each other.
Liquids
that do not dissolve in
each other are called immiscible.
How is a Separating Funnel used?
The mixture
of liquids is placed inside the separating
funnel and a
container is put beneath. The liquid with
the lower density
floats on top.
When the tap is
opened, the liquid with
the higher density
starts to flow
through the separating funnel
into the container. The tap is then closed
just before the liquid
with the lower density
starts to flow through.
The liquid with the lower
density remaining in the separating
funnel
can then be drained into a different container
to separate the two liquids.
Liquids that dissolve in
each other can be separated by fractional
distillation.
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