Ammonium Ion

  • (noun): The ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion.
    Synonyms: ammonium

Some articles on ammonium ion, ammonium, ammonium ions, ion:

Ammonium - Acid Base Properties
... The ammonium ion is generated when ammonia, a weak base, reacts with Brønsted acids (proton donors) H+ + NH3 → NH4+ The acid dissociation constant (pKa) of NH4+ is 9.25 ... The ammonium ion is mildly acidic, reacting with Brønsted bases to return to the uncharged ammonia molecule NH4+ + B- → HB + NH3 Thus, treatment of concentrated solutions of ammonium salts with ... is dissolved in water, a tiny amount of it converts to ammonium ions H3O+ + NH3 H2O + NH4+ The degree to which ammonia forms the ammonium ion depends ...
Organic Ammonium Ions
... See also Amine The hydrogen atoms in the ammonium ion can be substituted with an alkyl group or some other organic group to form a substituted ammonium ion (IUPAC nomenclature" aminium ion) ... Depending on the number of organic groups, the ammonium cation is called a primary, secondary, tertiary, or quaternary ... With the exception of the quaternary ammonium cations, the organic ammonium cations are weak acids ...
Glutamine Synthetase
... Competition between ammonium ion and water, their binding affinities, and the concentration of ammonium ion, influences glutamine synthesis and glutamine hydrolysis ... Glutamine is formed if an ammonium ion attacks the acyl-phosphate intermediate, while glutamate is remade if water attacks the intermediate ... Ammonium ion binds more strongly than water to GS due to electrostatic forces between a cation and a negatively charged pocket ...
Treatment Wetland - Specific Contaminants Removal - Ammonia Removal - (NH3) and Ammonium (NH+
4)

... The ammonium ion (NH+ 4) is the primary form of mineralized nitrogen in most flooded wetland soils ... This ion forms when ammonia combines with water as follows Upon formation, several pathways are available to the ammonium ion ... and converted back into organic matter, or the ammonium ion can be electrostatically held on negatively charged surfaces of soil particles ...