Iodometric refers to a type of titration method used in analytical chemistry to determine the concentration of certain substances, particularly oxidizing agents. This technique involves the use of iodine, which reacts with the analyte to form a colored complex. The endpoint of the titration is indicated by a color change, allowing for precise measurement. In iodometric titrations, the sample is often treated with a solution of potassium iodide, which releases iodine when oxidized. Common applications include measuring the concentration of chlorine in water or assessing the purity of sodium thiosulfate. This method is valued for its accuracy and reliability.