Used as a source of iodine in nutritional supplements and animal feed to prevent iodine deficiency. Employed in the pharmaceutical industry for the formulation of iodine-based medications. Serves as a catalyst or reagent in organic synthesis, particularly in iodination reactions. Utilized in cloud seeding operations to promote precipitation in weather modification programs. Applied in some industrial processes requiring a soluble calcium or iodide source due to its high solubility in water. Also found in certain photographic chemicals and in laboratory research for iodide ion provision.