Separating Mixtures

Separating Mixtures

1. Magnetic Attraction

   • Separate magnetic materials from those that are not attracted by magnets
   • food processing

2. Fractional Distillation

   • separate magnetic materials from those that are in a liquid-liquid mixture

3. Distilation

   • Separate pure liquid from a solid-liquid/ liquid-liquid mixture

4. Evaporation

   • Used to obtain salt from a separation
   • Used to separate a dissolved solid from a solid-liquid mixture

5. Filtration

   • Used in water treatment
   • Used to separate insoluble solid from a solid-liquid mixure

6. Crystalistion

   • Separate a soluble solid-liquid mixture
   • Produce a solution
   • Heated to evaporate most of the solvent
   • Be saturated
   • Dissolves solids (liquids)
   • Impurities remain
   • Crystalization be dried

7. Chromatography

   • Separate small amounts of mixtures
   • Separate mixtures of coloured substances such as ink and dyes
   • identify the contents of a mixture/ test the purity of a liquid