Sodium thiosulfate as an analysis titrant is widely used in various analytical chemistry applications. It is particularly effective in iodometric titrations, where it serves as a reducing agent to determine the concentration of oxidizing agents such as iodine. This makes it a key component in water quality testing, where it is used to measure the levels of chlorine or other disinfectants in water samples. Additionally, it is employed in the pharmaceutical industry to assay substances like hydrogen peroxide and other oxidizing compounds. Its ability to react quantitatively with iodine also makes it useful in determining the concentration of iodine-based solutions, which is essential in medical diagnostics and research. Furthermore, sodium thiosulfate is utilized in the titration of copper in various industrial processes, including metallurgy and electroplating, ensuring precise measurement and control of metal concentrations. Its versatility and reliability in titration processes make it a staple in analytical laboratories.