Chlorous acid
Structural formula | |||||||||||||
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General | |||||||||||||
Surname | Chlorous acid | ||||||||||||
other names |
Chloro (III) acid |
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Molecular formula | HClO 2 | ||||||||||||
Brief description |
only stable in aqueous solution |
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External identifiers / databases | |||||||||||||
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properties | |||||||||||||
Molar mass | 67.44 g mol −1 | ||||||||||||
pK s value |
1.97 |
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solubility |
soluble in water |
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safety instructions | |||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
The chlorous acid is one of the oxygen-containing acids of chlorine. Since it decomposes rapidly in water, chlorine dioxide and hydrochloric acid even in a dilute cold solution , it is of little importance in its free form.
The salts of chlorous acid are the chlorites . Compared to free acid, they are more stable and can be isolated in pure form, but they are reactive substances and effective oxidizing agents , which must be taken into account when handling.
Manufacturing
Chlorous acid is obtained by reacting barium chlorite and sulfuric acid . Barium sulfate precipitates as a by-product .
Individual evidence
- ^ A b c A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 .
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
Web links
Commons : Chlorous acid - Collection of pictures, videos, and audio files