Halite (oxyanion)

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Chlorite ( .mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block;text-align:left}.mw-parser-output sub.template-chem2-sub{font-size:80%;vertical-align:-0.35em}.mw-parser-output sup.template-chem2-sup{font-size:80%;vertical-align:0.65em} ClO-2), a halite Chlorite-3D-vdW.png
Chlorite (ClO−2), a halite

A halite, also known as a halogenite, [1] is an oxyanion containing a halogen in a +3 oxidation state. It is the conjugate base of a halous acid. The known halites are chlorite, bromite, and iodite.

Contents

Uses

Halites can be used to generate the respective halogen dioxides via a one-electron oxidation:

5 NaClO2 + 4 HCl → 5 NaCl + 4 ClO•
2 + 2 H2O
BrO−
2 + HBrO3 + H+ → 2 BrO•
2 + H2O

This reaction in particular is used in bleach to generate chlorine dioxide.

Stability

Chlorites tend to decompose rapidly, some even explosively, upon heating. [2] A few bromites have been isolated, but no iodites have. [3]

References

  1. ↑ Holleman, A. F.; Wiberg, Egon; Wiberg, Nils (2001). Inorganic Chemistry. Web: Academic Press. p. 439. ISBN   9780123526519 . Retrieved 21 March 2019.
  2. ↑ Holleman, A. F.; Wiberg, Egon; Wiberg, Nils (2001). Inorganic Chemistry. Web: Academic Press. p. 445. ISBN   9780123526519 . Retrieved 21 March 2019.
  3. ↑ Egon Wiberg, Arnold Frederick Holleman (2001) Inorganic Chemistry, Elsevier ISBN   0-12-352651-5


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