Used in titration procedures for quantitative analysis of oxidizing agents such as copper(II) salts and dissolved oxygen in water samples. Commonly applied in iodometric titrations where it reacts with oxidants to liberate iodine, which is then titrated with sodium thiosulfate using starch as an indicator. Suitable for use in environmental testing, pharmaceutical analysis, and quality control in chemical manufacturing due to its precise concentration and high purity. Also employed in standardization of other titrants and in redox reaction studies.