Zusammenfassung der Ressource
Anion Tests
- Nitrate
- Add dilute sodium
hydroxide and a little
aluminium powder
- Ammonia gas is
produced. It turns moist
red litmus paper blue
- Iodide
- Add dilute nitric acid (destroys and
carbonate present) and then
lead(II) nitrate solution
- A yellow precipitate of
lead(II) iodide is formed
- Chloride
- Add dilute nitric acid (destroys
any carbonate present) and then
silver nitrate solution
- A white precipitate of
silver chloride is formed
- Carbonate
- Add dilute
hydrochloric acid
- Effervescence occurs
and carbon dioxide gas is
given off
- Sulphate
- Add dilute nitric acid (destroys
any carbonate present) and then
barium nitrate solution
- A white precipitate of barium sulfate is formed