Zinc iodide is widely used in organic synthesis as a catalyst or reagent, particularly in reactions involving carbon-carbon bond formation. It serves as a mild Lewis acid that facilitates various transformations, including Friedel-Crafts acylations and cyclization reactions. In the pharmaceutical industry, it supports the synthesis of complex molecules due to its selective reactivity and stability under controlled conditions. It is also employed in radiography as a component of X-ray contrast media, especially in veterinary medicine, where it helps visualize internal structures due to its high density and iodine content. Additionally, zinc iodide finds use in the preparation of other iodine-containing compounds and in some types of dental cements, contributing to their setting properties and antimicrobial effects. In materials science, it is used in the fabrication of semiconductors and optoelectronic devices, where it acts as a precursor or dopant. Its ability to form clear, stable complexes makes it useful in certain types of transparent conducting films and light-emitting diodes (LEDs). Zinc iodide is also applied in educational and research laboratories for demonstrations and experiments involving precipitation reactions and solubility studies.