Some iodide compounds are used to prevent thyroid problems and in medical imaging.

Medical Use

Silver iodide is used in photography due to its sensitivity to light.

Photo Sensitivity

Iodides can react with other elements, making them important in synthesis and industry.

Industrial Reagent

 You can help catch the counterfeits. All you need are some simple tools and a bit of chemistry. First up, the anti-counterfeit detection pen. The pen looks like a highlighter and contains a solution of potassium iodide and elemental iodine.