hydronium ion

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hydronium ion

(haɪˈdrəʊnɪəm)
n
(Chemistry) chem another name for hydroxonium ion
[C20: from hydro- + (amm)onium]

hy•dro′ni•um i′on

(haɪˈdroʊ ni əm)
n.
the hydrogen ion bonded to a molecule of water, H3O + , the form in which hydrogen ions are found in aqueous solution.
[< German Hydronium (1907), contraction of Hydroxonium; see hydro-2, -onium]
References in periodicals archive ?
The low Cd biosorption at pH less than 4 has been suggested to the competition among metal ions from hydronium ions for the available biosorption sites.
At lower pH (acidic pH), the adsorbent surface will be completely covered with hydronium ions which compete strongly with metal ions for adsorption sites.
When the positively charged droplets come into contact with the sample being tested, the hydronium ions transfer their extra proton to molecules in the sample, turning them into ions.