IUPAC Name
Amino(imino)methane Sulfinic Acid
Cas Number
1758-73-2
HS Code
2930.90.99
Formula
CH4N2O2S
Industry
-
Appearance
White Powder
Common Names
Formamidine Sulfinic Acid; Reducing Agent F
Packaging
800 @ 25 kg PP Woven Bag, 20 MT / 20FCL
Brief Overview
Thiourea Dioxide (or amino(imino)methanesulfinic acid) is a white coloured organic powder having the formula CH4N2O2S. It is a stable compound which easily dissolves in water, and decomposes to produce sulfoxylic acid by the application of heat in the presence of an alkali. It is most widely used in the textile industry as a reducing agent.
Manufacturing Processes
Thiourea Dioxide is normally made from the oxidation of Thiourea using Hydrogen Peroxide. This is done by maintaining the pH of the raw material mixture within 3 to 5 and the temperature below 10 degrees Celsius.
Bleaching Industry
Thiourea Dioxide is also used as a replacement for NaClO and Sodium Hydrosulfide in mechanical paper and post-bleaching applications.
Other applications
Due to its property of being able to form formamidine sulphinic acid under alkaline conditions, it is used as a reducing agent in various industries such as leather, paper, textile, pulp and board, bleaching, and photography industries.
