Thursday, 22 September 2011

Soap



In Chemistry today the students learnt about cleaning agents and investigated saponification.
Mr Akele Academy Chemistry Teacher

Weigh out 5g of sodium hydroxide.


The sodium hydroxide was dissolved in 30mL of water
and 5mL of castor oil was added.
Castor Oil



Boil the mixture gently for minutes, with constant stirring.











Cool the solution, 10g of sodium chloride and heat the mixture for a further 2 minutes.
Decant liquid from the mixture and rinse with distilled water.
Filter the soap using a Buchner funnel and flask.

Mr Grace Academy Chemistry Teacher











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