Recap: Simple Distillation

• What is it used to separate?

• How does it work?• Key words

Start mixture:

• 50% propanone (boiling point 58°c)• 50% water with food dye (boiling point 100°c)

Big question: How could we separate these 2 liquids?

Big question: How can we test for water and propanone at the start and end of the process to prove they are there?

Fractional Distillation

• Crude oil • Separating crude oil in industry

Fractional distillation

Fractional distillation is used to s _ _ _ _ _ _ _ crude oil (a m _ _ _ _ _ _) into its different parts (f _ _ _ _ _ _ _ _). Each fraction has a different use.Because they have different b _ _ _ _ _ _ points, the substances in crude oil can be separated using fractional distillation. The crude oil is e _ _ _ _ _ _ _ _ _ and its vapours allowed to c _ _ _ _ _ _ _ at different temperatures in the fractionating column.