What is tincture of iodine? Identify solute and solvent in tincture of iodine. Why Tyndall effect is not seen in true solution?
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Tincture of iodine, iodine tincture, or weak iodine solution is an antiseptic. It is usually 2–7% elemental iodine, along with potassium iodide or sodium iodide, dissolved in a mixture of ethanol and water. ... Stretton used a much weaker solution than that used by Grossich.
The solvent is alcohol and water while the solute is iodine.
It works on the principle that light beams scatter due to the presence of large colloidal particles in the solution which separate the light however in a true solution the particles are not as large enough to scatter the light particles, that is why Tyndall effect is not seen in true solution.
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