Testing For Anions and Cations. EDEXCEL C3

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  • Created by: LSC
  • Created on: 01-05-12 18:01


  • Calcium-Brick Red (to remember this I think of the milk top on skimmed milk)
  • Sodium-Yellow
  • Potassium-Lilac
  • Copper-Green

These are very basic and you have to do further tests to distinguish the cation


add dilute sodium hydroxide

  • Ammonium-None
  • Aluminium- White
  • Calcium-White  (to remember this I think of calcium making your teeth white)
  • Copper-Blue
  • Iron(II)-Green
  • Iron(III)-Brown(rust)

To distinguish between calcium and aluminium- add excess dilute sodium hydroxide. The precipitate…


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