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ammonium ion

British  

noun

  1. the ion NH 4 + , formed from ammonia and present in aqueous solutions of ammonia and in many salts

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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The ammonia acts as a base in accepting this proton, becoming an ammonium ion, the conjugate acid of ammonia.

From Textbooks Feb. 14, 2019

Hot ammonia and the ammonium ion are active reducing agents.

From Textbooks Feb. 14, 2019

In the reverse direction, a hydroxide ion acts as a base in accepting a proton from ammonium ion, which acts as an acid.

From Textbooks Feb. 14, 2019

In this oxidation-reduction reaction, the nitrogen in the nitrate ion oxidizes the nitrogen in the ammonium ion.

From Textbooks Feb. 14, 2019

This transamination event creates a molecule that is necessary for the Krebs cycle and an ammonium ion that enters into the urea cycle to be eliminated.

From Textbooks Jun. 19, 2013

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