Used in industrial processes as a source of sulfate ions, particularly in metal treatment and electroplating. Commonly applied in wastewater treatment to control odors by preventing hydrogen sulfide formation. Utilized in agriculture for soil amendment to supply sulfur to crops, improving plant growth and soil fertility. Also employed in the production of detergents, dyes, and paper processing. In laboratory settings, serves as a reagent in precipitation reactions and analytical chemistry for detecting cations like barium and calcium.