Sodium thiosulfate analysis titrant is widely used in analytical chemistry for determining the concentration of various substances. It is particularly effective in iodometric titrations, where it reacts with iodine to form iodide ions, allowing for the quantification of oxidizing agents like chlorine, bromine, and hydrogen peroxide. This makes it essential in water treatment processes to measure residual disinfectants. Additionally, it is employed in the pharmaceutical industry to assay compounds that release iodine. In photography, it serves as a fixing agent to remove unexposed silver halides from film and paper. Its precise titration properties also make it valuable in environmental testing for analyzing pollutants and in food industry applications to assess preservative levels.