iodide ion

chemical compound

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In iodine: Physical and chemical properties
Although the iodide ion is colorless, iodide solutions may acquire a brownish tint as a result of oxidation of iodide to free iodine by atmospheric oxygen. Molecules of elemental iodine, consisting of two atoms (I₂), combine with iodides to form polyiodides (typically I₂ + I⁻ → I⁻₃),…
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