Thiourea dioxide Molecular formula:ch4n2so2 molecular weight:108.12 Melting point: 126 fpc ph: 4(1% solution) Cas no.: 1758-73-2 or 4189-44-0 Un no.: 3341 dangerous goods class: 4.2 It is one kind of new environmental protection product which can replace sodium hydrosulfite. It has good heat stability, high as reducibility, easy operation and transportation and storage convenient. It widely applies to reduction dyes and sulfur dyes dyeing, wool and silk bleaching, disperse dyes reducing cleaning, dye vat cleaning and so on. And also used in paper making industry as paper pulp bleachingwaste paper deink etc. And serves as the catalyst and the stabilizer of the synthetic resin in the high polymer material industry, and also used in the organic synthesis fiber material, the medicament, the medicine, the spice etc in fine chemical and the noble metal recycling and separates also has the application. There is no pollution during the operation. Packing:25kg/weaved bag