Thiourea Dioxide
Thiourea dioxide (Molecular Formula: CH4N2O2S. CAS Number: 1758-73-2) is also called formamidine-sulfinic and is often abbreviated as TDO or TUD. Thiourea dioxide is a powdered stable compound, which dissolves in water and decomposes gradually to produce sulfoxylic acid through formamidine-sulfinic acid to exhibit a reducing action. This reaction is promoted by the application of heat or in the presence of an alkali, and a strong reducing action is thereby exhibited. But, this reaction is slow, and particularly in an acidic to weakly alkaline region.Thiourea dioxide (TDO) is a strong reductant which re-arranges under alkaline conditions to form formamidine sulphinic acid. This product is used in leather processing industry, paper, pulp and board industry, photographic industry, textile processing industry, bleaching and reducing agents. This product is also a component of decolorisation agents. TDO has been very effective on a wide variety of pulp sources as a reductive bleaching aid in the pulp and paper industry. The application of TDO is crucial to achieve optimal brightness gain in the deinking process.
Qingdao Tianhao Chemicals Co.,Ltd. was established in 1999 and is located in Qingdao city, a beautiful famous seaside city. Our factory is in economic development zone of Henan province. It covers an area of 43,000 square meters, in particular 3,000 square meters of Thiourea Dioxide workshop. It's fixed assets is over 20 million RMB Yuan. It employs 200 workers. It's annual production ability is eight thousand tons. In order to make sure the stability of products, recently it invested one hundred thousand RMB Yuan to instal round-the-clock electronic temperature control record system produced in Japan. In 2000, it was certified GB/T19001:2000 version quality system authentification. It has won the popularity of consumers. It has become a specified supplier of Thiourea Dioxide in Japan, USA, Autralia and so on. We warmly welcome all fields of friends to visit our company and negotiate trade.
