Used primarily in the textile industry as a reducing agent in dyeing processes, particularly for vat dyes, helping to fix dyes to fabrics and ensure colorfastness and uniformity. It is also employed in the synthesis of organic compounds, acting as a stabilizer or intermediate in various chemical reactions, including pharmaceutical intermediates. In water treatment, it serves as a dechlorinating agent to remove excess chlorine from water systems. Additionally, it finds application in the leather industry for tanning processes, improving the quality and durability of leather products. Its reducing properties make it useful in photographic development as well, aiding in the production of high-quality images.