Thiourea Dioxide

Thiourea DioxideOther Name: Formamidine sulfinic acid, Amino imino methanesulfinic acidFormula: CH4N2SO2 short name:TDO,THUCAS No.: 1758-73-2 or 4189-44-0UN No.: 3341Dangerous Goods Class: 4.2Specification:Purity: 99.%MinThiourea: 0.10%MaxMoisture:0.05%MaxIron(Fe):10ppm MaxSulphate: 0.17%MaxTHIOUREA DIOXIDE is a reducing agent for use in reduction clearing, dye-stripping and general textile equipment cleaning.Thiourea Dioxide (TDO or TUD) is also named as Formamidine Sulfinic Acid. Its appearance is white crystal powder. Thiourea Dioxide is a stable compound with no strong reducing and oxidizing ability, and its dissolvability is 26.7g/l (20 oC),while its PH is 5.0 in saturated solution. Thiourea Dioxide (TDO) appears terrific stable even in 20oC -30oC solution, but when it is under heat or catalysesing by alkali, it decomposes gradually to produce sulfoxylic acid through formamidine sulfinic acid to exhibit a reducing action.Thiourea Dioxide can also be used in paper industry as deinking and bleaching agent to substitute Sodium Hydrosulfite.Thiourea Dioxide (TDO) is a new kind of reducing agent that used as exchange of sodium hydrosulfite. It is widely used in textile and paper making industry. This product is also used in leather processing industry, paper, pulp and board industry, photographic industry, bleaching and reducing agents. This product is also a component of decolorisation agents. In macromolecule material industry, it is used as catalysis agent and stabilizer of resinic producing, and it is also used in organic synthesization of sensitizing material, and medicine, medical, spicery materials in fine chemicals, and also can be applied in the recycling and separating of heavy metals.Packing:a.500kg and 1000kg container bags.b.25kg or 50kg plastic bags.c. 100kg or 160kg drums.d. 25kg kraft paper compound plastic bags.e.50kg fiber drums