Potassium stannate is widely used in the electroplating industry, particularly for tin plating on various metal surfaces. It serves as a key component in alkaline tin plating baths, providing a smooth, uniform, and corrosion-resistant tin coating. This makes it valuable for applications in electronics, where it is used to coat connectors, circuit boards, and other components to enhance conductivity and prevent oxidation. Additionally, it is employed in the manufacturing of food packaging materials, such as tin-coated steel cans, to ensure durability and resistance to corrosion. Potassium stannate is also utilized in the production of glass and ceramics, where it acts as a stabilizer and improves the quality of the final product. Its ability to form stable complexes makes it useful in various chemical synthesis processes as well.