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Encyclopedia > Chlorite
The chlorite ion
The chlorite ion
This discusses some chlorine compounds. Chlorite is also a type of mineral; see chlorite group.

The chlorite ion is ClO2−. A chlorite (compound) is a compound that contains this group, with chlorine in oxidation state +3. Chlorites are also known as salts of chlorous acid. Image File history File links Size of this preview: 768 × 600 pixel Image in higher resolution (1100 × 859 pixel, file size: 134 KB, MIME type: image/png) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Chlorite ... Image File history File links Size of this preview: 768 × 600 pixel Image in higher resolution (1100 × 859 pixel, file size: 134 KB, MIME type: image/png) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Chlorite ... Chlorite is a group of phyllosilicate minerals often classified as clays. ... “Multivalent” redirects here. ... General Name, Symbol, Number chlorine, Cl, 17 Chemical series halogens Group, Period, Block 17, 3, p Appearance yellowish green Atomic mass 35. ... In chemistry, the oxidation state is an indicator of the degree of oxidation of an atom in a chemical compound. ... A magnified crystal of a salt (halite/sodium chloride) Salt covering the floor of Bad Water in Death Valley, CA, the lowest point in the US. A salt, in chemistry, is any ionic compound composed of cations (positively charged ions) and anions (negative ions) so that the product is neutral... Chlorous acid, HClO2, is unstable, but chlorites such as sodium chlorite can be considered the salts of this acid. ...

Contents

Oxidation states

Chlorine can assume oxidation states of −1, +1, +3, +5, or +7 corresponding to the anions Cl−, ClO−, ClO2−, ClO3−, or ClO4−, respectively (known as chloride, hypochlorite, chlorite, chlorate, and perchlorate.)

oxidation state −1 +1 +3 +5 +7
anion name chloride hypochlorite chlorite chlorate perchlorate
formula Cl− ClO− ClO2− ClO3− ClO4−
structure The chloride ion The hypochlorite ion The chlorite ion The chlorate ion The perchlorate ion

The chloride ion is formed when the element chlorine picks up one electron to form an anion (negatively-charged ion) Cl−. The salts of hydrochloric acid HCl contain chloride ions and are also called chlorides. ... The hypochlorite ion is ClO-. A hypochlorite compound is a chemical compound containing this group, with chlorine in oxidation state +1. ... Definition The chlorate ion ClO3-. A chlorate (compound) is a compound that contains this group, with chlorine in oxidation state +5. ... Perchlorates are the salts derived from perchloric acid (HClO4). ... Image File history File links Size of this preview: 600 × 600 pixel Image in higher resolution (1100 × 1100 pixel, file size: 184 KB, MIME type: image/png) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Polyatomic ion Chlorite... Image File history File links Size of this preview: 785 × 599 pixel Image in higher resolution (1100 × 840 pixel, file size: 116 KB, MIME type: image/png) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Chlorite Hypochlorite ... Image File history File links Size of this preview: 768 × 600 pixel Image in higher resolution (1100 × 859 pixel, file size: 134 KB, MIME type: image/png) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Chlorite ... Image File history File links Size of this preview: 596 × 600 pixel Image in higher resolution (1093 × 1100 pixel, file size: 160 KB, MIME type: image/png) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Chlorite Chlorate ... Image File history File links Size of this preview: 594 × 600 pixel Image in higher resolution (1089 × 1100 pixel, file size: 161 KB, MIME type: image/png) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Chlorite Perchlorate ...

Some chlorite compounds

  • sodium chlorite, NaClO2
  • magnesium chlorite, Mg(ClO2)2
  • hydrous magnesium aluminum silicate - a talc-like mineral. Platy in nature and soft. Used in paints, coatings and ceramics

Manufacture The free acid, chlorous acid, HClO2, is only stable at low concentrations. ...

Manufacture

The free acid, chlorous acid, HClO2, is only stable at low concentrations. Since it cannot be concentrated, it is not a commercial product. However, the corresponding sodium salt, sodium chlorite, NaClO2 is stable and inexpensive enough to be commercially available. The corresponding salts of heavy metals (Ag+, Hg+, Tl+, Pb2+, and also Cu2+ and NH4+) decompose explosively with heat or shock. Manufacture The free acid, chlorous acid, HClO2, is only stable at low concentrations. ...


Sodium chlorite is derived indirectly from sodium chlorate, NaClO3. First, the explosively unstable gas chlorine dioxide, ClO2 is produced by reducing sodium chlorate in a strong acid solution with a suitable reducing agent (for example, sodium chloride, sulfur dioxide, or hydrochloric acid). The chlorine dioxide is then absorbed into an alkaline solution and reduced with hydrogen peroxide, H2O2 yielding sodium chlorite. Manufacture The free acid, chlorous acid, HClO2, is only stable at low concentrations. ... Sodium chlorate (NaClO3, CAS 7775-09-9) is an oxidizing agent. ... Chlorine dioxide is a reddish-yellow gas which is one of several known oxides of chlorine. ... Chlorine dioxide is a reddish-yellow gas which is one of several known oxides of chlorine. ... Hydrogen peroxide (H2O2) is a very pale blue liquid which appears colourless in a dilute solution, slightly more viscous than water. ... Manufacture The free acid, chlorous acid, HClO2, is only stable at low concentrations. ...


Usage

The main application of sodium chlorite is the generation of chlorine dioxide for bleaching and stripping of textiles, pulp, and paper. It is also used for disinfection in a few municipal water treatment plants after conversion to chlorine dioxide. An advantage in this application, as compared to the more commonly used chlorine, is that trihalomethanes are not produced from organic contaminants. Sodium chlorite, NaClO2 also finds application as a component of contact lens cleaning solution under the trade name purite. Manufacture The free acid, chlorous acid, HClO2, is only stable at low concentrations. ... Chlorine dioxide is a reddish-yellow gas which is one of several known oxides of chlorine. ... Manufacture The free acid, chlorous acid, HClO2, is only stable at low concentrations. ...


Sodium chlorite, like many oxidizers, should be protected from inadvertent contamination by organic materials to avoid the formation of an explosive mixture.


References

  • Chemistry of the Elements, N.N. Greenwood and A. Earnshaw, Pergamon Press, 1984.
  • Kirk-Othmer Concise Encyclopedia of Chemistry, Martin Grayson, Editor, John Wiley & Sons, Inc., 1985

  Results from FactBites:
 
Chlorite - LoveToKnow 1911 (646 words)
The chlorites usually occur as salt (H= 2-3) scaly aggregates of a dark-green colour.
Chemically, the chlorites are distinguished from the micas by the presence of a considerable amount of water (about 13%) and by not containing alkalis; from the soft, scaly, mineral talc they differ in containing aluminium (about 20%) as an essential constituent.
Closely allied to the chlorites is another group of micaceous minerals known as the vermiculites, which have resulted by the alteration of the micas, particularly biotite and phlogopite.
chlorite.htm (1477 words)
Chlorite is found in the Keweenawan metabasalts in the pits and shaft of the Melrose copper prospect, NW NW sec.
DOUGLAS COUNTY: Chlorite is widespread in the amygdules and groundmass of the Keweenawan metabasalts throughout the county.
- Chlorite is an abundant amygdule mineral with prehnite, calcite, quartz, chalcopyrite and K feldspar in metabasalt in the quarry in the NW NW sec.
  More results at FactBites »


 

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