Separating Mixtures

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Separating dissolved substances
- Inks, dyes, food colurings
- Chromoto-graphy
  - Separating mixtures
    - Filtration
    - Evaporation
      - Separating solids from liquids
- Use paper and ink
- Ink dot on paper, dip the paper in water just below the dot, the ink travels upwards and the colour separates
Separating solids from liquids
- Insoluble substances
- Filtration
- The sand stays behind in filter paper = residue
- Filter paper and a funnel
- Water passes through the paper = Filtrate
Use evaporating basin and heat
- Liquid evaporates and leaves crystals / residue
  - Separating solids from liquids