First aid to help prevent infection in minor cuts, scrapes and burns. From Humco. Active Ingredients: Iodine 2%; Sodium Iodide 2.4%. Iodine is also used as a disinfectant and to treat iodine deficiency. The main difference between Betadine and Iodine is that Betadine is a formulation containing povidone.
HI (hydrogen iodide) along with elemental iodine (I) whereas iodine is a chemical element. Tincture of iodine (aqueous iodine oral solution, Lugol's solution) is a solution of iodine 5% plus potassium iodide 10% in water, which is used to reduce the vascularity of the thyroid gland in thyrotoxicosis before surgery.