Chemistry:Potassium chlorite
From HandWiki
Short description: Chemical compound
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| Names | |
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| IUPAC name
Potassium chlorite
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3D model (JSmol)
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| ChemSpider | |
| MeSH | 67063160 |
PubChem CID
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| Properties | |
| KClO2, ClKO2 | |
| Molar mass | 106.55 g/mol |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Potassium chlorite is a potassium salt of chlorous acid (HClO2) having a chemical formula KClO2. It exists as white powder and its anhydrous form easily undergoes decomposition in presence of heat or radiation (especially gamma rays).[1]
Properties
Potassium chlorite is a colorless hygroscopic crystal that deliquesces in the air. It decomposes upon heating into potassium chloride and oxygen, emitting light.
- KClO
2 → KCl + O
2
Potassium chlorite forms orthorhombic cmcm crystals and has been reported to decompose within hours at room temperature.[1][2] It is an oxidizing agent.
Synthesis
Some of the methods of preparation of potassium chlorite are:
- Thermal decomposition of potassium chlorate
- 2 KClO
3 → 2 KClO
2 + O
2
- Reaction of chloric acid and potassium hydroxide
- HClO
2 + KOH → KClO
2 + H
2O
References
- ↑ 1.0 1.1 Boyd, George E.; Brown, Larry Clyde (1970). "Thermal and radiolytic decomposition of anhydrous crystalline potassium chlorite" (in en). The Journal of Physical Chemistry 74 (8): 1691–1694. doi:10.1021/j100703a006. ISSN 0022-3654. https://pubs.acs.org/doi/abs/10.1021/j100703a006.
- ↑ Smolentsev, A. I.; Naumov, D. Yu (2005-02-15). "Two alkali metal chlorites, LiClO2 and KClO2" (in en). Acta Crystallographica Section C: Crystal Structure Communications 61 (2): i17–i19. doi:10.1107/S0108270104032482. ISSN 0108-2701. PMID 15695881. Bibcode: 2005AcCrC..61I..17S. https://scripts.iucr.org/cgi-bin/paper?S0108270104032482.
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