Used in analytical chemistry as a visual indicator in precipitation titrations, particularly in the determination of chloride ions by the Mohr method. It reacts with silver ions to form a reddish-brown precipitate of silver chromate, signaling the endpoint of the titration when excess silver ions are present. Its distinct color change from yellow to reddish-brown provides a clear and reliable indication of reaction completion. Also employed in qualitative inorganic analysis to detect the presence of certain metal ions that form colored precipitates with chromate. Due to its oxidizing properties, it may be involved in redox titrations, though its primary use remains in volumetric analysis for halides.