hydronium ion

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hydronium ion

[hī′drō·nē·əm ¦ī‚än]
(inorganic chemistry)
H3O+An oxonium ion consisting of a proton combined with a molecule of water; found in pure water and in all aqueous solutions. Also known as hydrogen ion.
References in periodicals archive ?
The decrease in lead uptake by acid desorbent might be due to the increase of the concentrations of competing hydronium ions.
Metal sorption starts when the pH rises to the range where most acidic ion exchange sites start to exchange hydronium ion for metal and the capacity reaches the maximum value in the pH range where all the ion exchange sites take part in the reaction and the functional group is able to form complex with the metal cations (37).
Reducing the pH subsequently reduces the anion species available by increasing the competition amongst hydronium ions and metal ions (24).