Used primarily in analytical chemistry for determining water content in aldehydes and ketones through Karl Fischer titration. This reagent is essential in industries where precise moisture measurement is critical, such as pharmaceuticals, food processing, and chemical manufacturing. It ensures accurate quantification of water, which is vital for quality control, stability, and compliance with regulatory standards. The reagent is particularly effective in handling challenging samples like aldehydes and ketones, which can interfere with traditional titration methods. Its application helps maintain product integrity and consistency in various industrial processes.