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Chlorine dioxide
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<p>Chlorine dioxide is a <a href="/facts/Chemical_compound/37FXqqtv">chemical compound</a> with the formula ClO2 that exists as yellowish-green <a href="/facts/Gas/hVVAoodV">gas</a> above 11 °C, a reddish-brown liquid between 11 °C and −59 °C, and as bright orange crystals below −59 °C. It is usually handled as an aqueous solution. It is commonly used as a <a href="/facts/Bleach/2xAjqa2u">bleach</a>. More recent developments have extended its applications in <a href="/facts/Food_processing/2vRFfCL9">food processing</a> and as a <a href="/facts/Disinfectant/33fF2QzG">disinfectant</a>. </p>