Chlorine Dioxide & Chlorite
CAS ID #: 010049-04-4, Chlorite 007758-19-2
Chlorine dioxide is a yellow to reddish-yellow manufactured gas. It does not occur naturally in the environment. When added to water, chlorine dioxide forms chlorite ion, which is also a very reactive chemical.
Chlorine dioxide is used as a bleaching agent at paper manufacturing plants, and in public water treatment facilities to make water safe to drink. In 2001, chlorine dioxide and chlorite were used to decontaminate a number of public buildings following the release of anthrax spores in the United States.
- Page last reviewed: February 1, 2009
- Page last updated: February 1, 2009
- Content source: Agency for Toxic Substance and Disease Registry
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