Thiourea Dioxide
Thiourea
diooxide (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
exhibi t 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.
Learn more
about thiourea dioxide
♠
What is thiourea dioxide?
♠ Why thiourea dioxide is popular in textile dyeing?
♠ Pulp bleaching chemicals and the bleaching benefits using thiourea dioxide.
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