Used as a titrant in non-aqueous acid-base titrations, especially for determining weak acids in organic solvents. It is effective in titrating phenols, carboxylic acids, and other acidic compounds that do not ionize well in water. Commonly applied in pharmaceutical analysis for assay of acidic drugs and in quality control of chemical raw materials. Its solubility in organic media makes it ideal for use in potentiometric titrations where aqueous conditions would interfere. Also used in the determination of acid number in industrial samples such as oils and resins.