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 (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. |