Separating Funnel is used to separate two immiscible liquids.
What are immiscible liquids?
We know that,
- Immiscible liquids are those liquids which do not mix together and form different layers
- These layers are separated by using separating funnel
Principle : The immiscible liquids separate out in layers because of difference in their densities .
How to separate a mixture of Kerosene and Water by Using Separating Funnel?
- Take a separating funnel
- Fill it with Mixture of Kerosene Oil And Water
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Allow it to settle for sometime by keeping it undisturbed
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After some time, we see two separate layers of the liquids clearly
Water moves down while kerosene oil moves up (this is because water is heavier/denser than kerosene oil)
- We open stopcock of the separating funnel Water at the bottom flows into separate beaker
- When all water flows out, we close stop cock Only kerosene is left in separating funnel
Uses of Separating Funnel Technique
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It is used to separate
Oil and Water
or Kerosene and Water
(Oil being lighter move up, Water being heavy moves down)
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It is used in
Extraction of Iron Ore
(When iron is melted, lighter slag stays at top while molten iron deposits at the bottom)