What is tincture of iodine? Identify the solute and solvent in it.


In the tincture of iodine, the solvent is alcohol and water while the solute is iodine. Tincture of iodine is also known as a weak iodine solution or iodine tincture. Iodine tincture is an antiseptic used to disinfect the wounds. The structure of the iodine tincture is 2 to 7 % of the iodine and the remaining is either Sodium or potassium iodide.

Use of Iodine tincture

  • Iodine tincture often used as an antiseptic
  • Tincture of iodine is also available in medical emergency kits,  used in disinfection of cuts and for the intake of surface water.
  • Small quantities can be introduced to suspect water sources as a usually 5 mg free iodine per liter disinfectant or 5 drops of 2 percent tincture. While this procedure does work against viruses and bacteria.
  • Iodine tincture is being used to kill viruses and bacteria and sanitize the surfaces of vegetables and fruits. The developing sanitizing concentration is 25 ppm idophor for 1 min.


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