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anion

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.01 sec.
anion (ăn`ī'ən), atom or group of atoms carrying a negative charge. The charge results because there are more electrons than protons in the anion. Anions can be formed from nonmetals by reduction (see oxidation and reduction oxidation and reduction, complementary chemical reactions characterized by the loss or gain, respectively, of one or more electrons by an atom or molecule. Originally the term oxidation
..... Click the link for more information. ) or from neutral acids (see acids and bases acids and bases, two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water. Properties

..... Click the link for more information. ) or polar compounds by ionization. Anionic species include Cl−, SO4−−, and CH3COO−. Highly colored intermediates in organic reactions are often radical anions (anions containing an unpaired electron). Salts salt, chemical compound (other than water) formed by a chemical reaction between an acid and a base (see acids and bases). Characteristics and Classification of Salts

..... Click the link for more information.  are made up of anions and cations cation , atom or group of atoms carrying a positive charge. The charge results because there are more protons than electrons in the cation. Cations can be formed from a metal by oxidation (see oxidation and reduction), from a neutral base (see acids and bases) by
..... Click the link for more information. . See ion ion, atom or group of atoms having a net electric charge. Positive and Negative Electric Charges


A neutral atom or group of atoms becomes an ion by gaining or losing one or more electrons or protons.
..... Click the link for more information. .

anion

Atom or group of atoms carrying a negative electric charge, indicated by a superscript minus sign after the chemical symbol. Anions in a liquid subjected to an electric field migrate toward the positive electrode (anode). Examples include hydroxyl (−OH−; see hydroxide), carbonate (−CO32−), and phosphate (−PO43−). See also ion; compare cation.

anion
a negatively charged ion; an ion that is attracted to the anode during electrolysis
anion [′a‚nīยทən]
(chemistry)
An ion that is negatively charged.
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Measurement of RBF and organic anion excretion The renal plasma flow (RPF) was calculated as a clearance of PAH, an organic anion prototype and RBF was estimated from RPF/1-Hematocrit (Agarwal, 2002; Gehrig et al.
The nephrotoxicity risk in rats subjected to heavy muscle activity by Oner, Gulsen; Cirrik, Selma / Journal of Sports Science and Medicine
In this study, we used the cation exchange film contained the sulfonic acid groups and the anion exchange film contained the quaternary ammonium groups.
Use of porous ion exchange film for glucose sensing by Hotta, Saori; Miyano, Kazuki; Aoki, Hidemitsu; Fujiwara, Nobuaki; Masui, Akihiko; Yano, Daisaku; San / Polymer Engineering and Science
The first stripe is comprised of a cleansing phase containing a surfactant, an electrolyte comprising an anion selected from the group consisting of phosphate, chloride, sulfate, citrate and mixtures thereof and a cation selected from the group consisting of sodium, ammonium, potassium, magnesium and mixtures thereof, a density modifier comprising a low density microsphere and water.
Striped personal cleanser liquid with phases by Household & Personal Products Industry
 
 
 
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