Zinc p-toluenesulfonate hydrate is widely used as a catalyst in organic synthesis, particularly in esterification and polymerization reactions. Its ability to facilitate these processes efficiently makes it valuable in the production of plastics, resins, and coatings. Additionally, it serves as a corrosion inhibitor in industrial applications, protecting metal surfaces from degradation. In electroplating, it is utilized to enhance the deposition of zinc onto substrates, improving durability and appearance. The compound also finds use in the preparation of specialty chemicals and as a stabilizer in certain formulations.