Chemistry

23. Paper chromatography

  • 00:27 Why use a pencil to make the line? 
  • 00:41 Why leave gaps?
  • 00:35 Why have a small dot?

  • grade 1 chromatography paper

  • scissors

  • black, red, blue and green biro inks (or similar)

  • 250 cm³ bottle or conical flask with tight-fitting stopper

  • pasteur pipette

  • developing-solvent

    • 20 cm³ water
    • 20 cm³ ethanol
    • 60 cm³ butan-1-ol
Hazard Risk Control measure

Developing-solvent

Flammable - Ignites

Extinguish using fire-blanket