When bubbled through alkaline water, chlorine gas disproportionates to form chloride ion and hypochlorite ion. |
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In cold water NO2 disproportionates to form a mixture of HNO2 and HNO3, whereas at higher temperatures HNO3 and NO are formed. |
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The NO2, excess oxygen, and the unreactive nitrogen from the air are passed through a water spray, where HNO3 and NO form as the NO2 disproportionates. |
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