Used as a high-density clear brine in oil and gas well completion fluids, allowing for precise control of fluid weight without causing damage to the formation. Commonly employed in the synthesis of organic compounds as a Lewis acid catalyst, particularly in bromination reactions and Friedel-Crafts alkylation. Utilized in aqueous zinc-bromine flow batteries for energy storage due to its reversible redox properties, offering scalable and long-duration electricity storage solutions. Applied in some dental cements and radiographic contrast media because of its stability and solubility. Also found in electroplating baths to deposit zinc coatings with good adhesion and uniform thickness.