Key Difference – Iodine vs Iodine Tincture Iodine is the largest stable halogen in the halogen group. At standard conditions, it exists as a lustrous, purple-black metallic solid. Tincture of iodine is a solution of Iodine in alcohol. The key difference between Iodine and Iodine tincture is that Iodine is an element which is […]