Interaction | Reaction | Process     Data Page

When a little dilute ammonia solution is added to a colourless solution of hexaaquaaluminium ion, the complex cation acts as a Brønsted acid and loses three protons giving a gelatinous white precipitate of the neutral complex triaaquatrihydroxyaluminium, and three ammonium ions.
[Al(H2O)6]3+
  +  
3
NH3(aq)
         
Al(H2O)3(OH)3
Al(OH)3
  +  
3
[NH4]+
Reactant Page Go To Go To
Hexaaquaaluminium complex ion     Reactions Using    Reactions Forming
Ammonia, aqueous     Reactions Using    Reactions Forming
Triaquatrihydroxyaluminium     Reactions Using    Reactions Forming
Ammonium ion     Reactions Using    Reactions Forming

Interaction, Reaction, Process defined as:
British A-Level Chemistry: A2
Precipitation
Proton transfer: Brønsted reaction

© Mark R. Leach 1999 –

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