Having difficulty controlling the amount of NaOH and Aq Ammonia used during the Cation test? Try this, just spray the cation solution on the flame and you will be able to identify it. If you do not have a spray bottle, get a metal innoculating loop and dip that into the cation solution, you will be able to see the colour change of the flame.
These are the result of the colour of the flame based on the cation. See the video that I have tried. Enjoy!
Copper - Green
Sodium - Orange
Potassium - Lilac
Barium - Yellow
Calcium - Red
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