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Test for ammonium ions!

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  1. Offline

    Without using indicators i thought that...

    You could react the solution supposidly containing ammonium ions with NaOH as that would form ammonia, and then react that with gaseous HCl to form a white smoke.

    Or does anyone know a simpler method?
    Any help appreciated.
  2. Offline

    just test the ammonia gas given off using damp indicator paper. It is the only (common) alkaline gas..
  3. Offline

    add a few drops of NaOH first to confirm no precipitate, then add NaOH in excess and either of the tests already suggested.
Updated: March 25, 2008
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