Used in analytical chemistry for the determination of reducing agents through iodometric titrations. Commonly applied in the quantification of sulfites, thiosulfates, and ascorbic acid in food and pharmaceutical samples. Also employed in the standardization of sodium thiosulfate solutions and in the determination of iodine content in iodized salt to ensure compliance with health standards. Its high purity and stability make it suitable for volumetric analysis in quality control laboratories, environmental testing, and research applications requiring precise and reliable results.