C1

Evaporation

-Slowly heat the solution in an evaporating dish. Solvent will evaporate.

- Crystals will start to form.

-Keep heating until all you have left are dry crystals.

Quick way but you can only use it if the salt doesn't break down when it's heated.

Crystallisation

1)Gently heat the solution in an evaporating dish. Some solvent will evaporate. Once it starts to evaporate, stop heating and leave solution to cool.

2) Salt should start to form crystals.

3) Filter crystals out of the solutions.

4)Leave in a warm place to dry.

Filter and crystallisation can be used to seperate rock salt.

Distillation

Used to seperate solutions.

1)First the solution is heated.

2)Part of the solution that has the lowest boiling point evaporates first and turns into a gas.

3)Gas travels into the condenser.

4)Gas is cooled and condenses.

5)Liquid drips out of the condenser and can be collected.

6)Rest of the solution is left behind the flask.

7)Simple distillation can't be used to seperate mixtures of liquids with similar boiling points. 

So we use fractional distillation

-Seperates a mixture of liquids.

1)Put mixture in…