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What is formula of iodine solution

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What is formula of iodine solution
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Meghna Thapar 5 years, 6 months ago

Iodine is a dark purpley-black solid at room temperature. It is purple in a hydrocarbon solvent. Iodide ions are colourless, so for example a solution of sodium iodide is colourless. Iodine is not very soluble in water, therefore the iodine reagent is made by dissolving iodine in water in the presence of potassium iodide. This makes a linear triiodide ion complex with is soluble that slips into the coil of the starch causing an intense blue-black color. The symbol for iodine is I.

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