Chlorous acidChlorous acid is an inorganic compound with the formula HClO2. It is a pale-yellow weak acid. Chlorine has oxidation state +3 in this acid. The pure substance is unstable, disproportionating to hypochlorous acid (Cl oxidation state +1) and chloric acid (Cl oxidation state +5): Read from the Chembox of the Wikipedia article Chlorous acid, revision 1370106137.

Property

Value

Formula

HClO2, 68.46 g/mol

pKa

1.96

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