hydronium ion


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hy·dro·ni·um ion

the hydrated proton, H3O+, a form in which hydrogen ion exists in aqueous solutions; also, H3O+·H2O, H3O+·2H2O, etc.
Synonym(s): oxonium ion

hydronium ion

(hi-dro'ne-um) [G. Hydronium, abbr. of Hydroxonium ] See: ion

hydronium ion

H3O+, a hydrated hydrogen ion. It is formed when an acid dissolves in water.
See also: ion
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References in periodicals archive ?
The water hydronium ions can penetrate the glass surface lattice and exchange with mobile ions present in the interstitial positions of the glassy matrix.
Taking into account the fact that 4 hydronium ions are consumed per AO7 molecule, the change in pH expected on the basis of reaction (2) results to be much less than what observed.
The decrease in lead uptake by acid desorbent might be due to the increase of the concentrations of competing hydronium ions. It is also possible that the physical structure of the biomass becomes damaged by this acid [18].
At low pH, the surface of the adsorbent was surrounded by hydronium ions that compete with metal ions, which prevented the metal ions approaching the binding sites on the adsorbent.
A low pH indicates a high concentration of hydronium ions, while a high pH indicates a low concentration.
The procedure involves spraying water in the presence of an electric field, causing water molecules to become positively charged "hydronium ions," which contain an extra proton.
No adsorption was observed at low pH values due to opposition of hydronium ions with the metal ions.
One of the main effects of the medium's pH over the sorption process is related to presence of hydronium ions which may cause the protonation of the adsorption sites (obviously this process is more evident at low pHs).