Used as a reducing agent in chemical synthesis, particularly in the production of silver mirrors and in electroless plating of metals. Commonly applied in the textile industry as a mordant in dyeing fabrics to improve color fastness. Employed in the manufacturing of pharmaceuticals and as a stabilizer in chlorine-based sanitizers. Also utilized in analytical chemistry for qualitative detection of gold, mercury, and other metals due to its ability to form characteristic precipitates or color changes.