Sources
open directory project
Help build the largest human-edited directory on the web.
Submit a site - Become an editor
Wikipedia. Licensed under the GNU Free Documentation License.
Are you an expert in this subject? Join the discussion and share your knowledge at Wikipedia.org.
Hydrogen ion
From Wikipedia, the free encyclopedia
The hydrogen ion is recommended by IUPAC as a general name for all ions of hydrogen and its isotopes[1] . Depending on the charge of the ion, two different classes can be distinguished:
When hydrogen loses its electron, the following cations can be formed
- Hydron: general name referring to the positive ion of any hydrogen isotope (H+)
- Proton: 1H+
- Deuteron: 2H+, D+
- Triton: 3H+, T+
In addition, the ions produced by the reaction of these cations with water as well as their hydrates are called hydrogen ions:
- Oxoniumion: H3O+
- Zundel cation: H5O2+
- Eigen cation: H9O4+
In connection with acids, hydrogen ions typically refer to hydrons.
Hydrogen anions are formed when additional electrons are taken on:
- Hydride: general name referring to the negative ion of any hydrogen isotope
- Deuteride: 2H-, D-
- Tritide: 3H-, T-
In organic chemistry jargon, a hydrogen atom in a molecule is often referred to simply as a proton.
- ^ Compendium of Chemical Terminology, 2nd edition McNaught, A.D. and Wilkinson, A. Blackwell Science, 1997 [ISBN 0-86542-684-8], also online