This product is used in dyeing modifier (polyacrylonitrile fiber, polypropylene fiber, polyester, rayon), reactive emulsifier, water-soluble polymer (coagulant, dispersant, container cleaning agent, cosmetics), polysulfide Composite body (dialysis membrane, battery, artificial body membrane), anti-static agent (nylon, recording paper, polyester), sulfur exchange resin (membrane), photo agent (micro-diaphragm), electroplating gloss agent, etc.