Used as a reagent in clinical laboratories to detect proteins in urine, aiding in the diagnosis of kidney-related conditions. It is also employed in the precipitation of proteins from biological samples, facilitating their analysis in biochemical research. In the textile industry, it serves as a mordant in dyeing processes, improving color fastness. Additionally, it finds application in the synthesis of certain pharmaceuticals and organic compounds, acting as an intermediate or catalyst. Its antiseptic properties make it useful in some topical formulations for skin treatment.