Used primarily in the textile industry as a reducing agent in dyeing processes, it helps improve color fastness and ensures even dye distribution on fabrics. It is also employed in the paper industry to enhance the brightness and strength of paper products. In water treatment, it acts as a dechlorinating agent to neutralize excess chlorine, making water safer for discharge or reuse. Additionally, it finds application in the synthesis of certain chemicals, where it serves as a stabilizer or intermediate in organic reactions. Its ability to release formaldehyde under specific conditions makes it useful in controlled-release applications, such as in preservatives for cosmetic and personal care products.