Product Name

Thiourea dioxide cas 1758-73-2

Basic Information

CAS No:1758-73-2
Molecular Formula:CH4N2O2S
Molecular Weight: 108.1
Appearance: white powder

Thiourea dioxide Chemical Properties




white powder



Density b(20℃)(kg/m3)2310
Flow viscosity(20℃)(mm2/s)1.700-1.800
Refractive index1.805
Column 1 Value 8≤3
Copper corrosion(50℃,3h)/Grade≤1
Mechanical impuritiesNO

Thiourea dioxide USES

【 Use 1 】
Widely used in chemical and textile industries, it is a strong reducing agent and has increasingly replaced insurance powder in the field of printing and dyeing
【 Use 2 】
Used as synthetic fiber auxiliaries, decolorizing agents, photographic film emulsifiers, chloroprene polymerization agents and rhodium and iridium separation agents
【 Use 3 】
As a reducing agent, urea sulfur dioxide is widely used in dyeing industry for wool bleaching, dyeing of VAT dyes and sulphur dyes, reduction washing agent for disperse dyes, discharge and decoloring agent. In organic synthesis, it is used to reduce ketone, quinone, nitro, azo, azo oxide, azo oxide, hypodiazo compounds and organic sulfides. Urea sulfur dioxide is also used as a variety of decolorizing agent, is a sensitizer for photo-gaging latex, and a chemical agent for separating rare metals rhodium and iridium, which can improve the stability of polyethylene. Adding urea sulfur dioxide in the evaporation process of polyacrylonitrile and polymerization can improve the color of polyacrylonitrile, which is an important supporting product for synthetic fiber production. This product is also widely used in the production of fine chemical products such as medicine and spices.
【 Use 4 】
Reagent for the reduction of ketones to secondary alcohols. Separation of rare metals rhodium and iridium. Photographic emulsion sensitizer. Polyvinyl chloride stabilizer. Enhance the tension and improve the color of acrylonitrile synthetic fibers. This product is also widely used in the production of fine chemical products such as medicine and spices. Pure crushed urea sulfur dioxide is a stable compound with neither oxidation nor reduction, solubility in water is 26.7 g/l (20 ° C), and the PH value of saturated water solution is 5.0. Even in an aqueous solution of 20-30 ° C is very stable, but the alkaline solution dissolved with urea sulfur dioxide is heated, it has a high reduction potential (-1230Mv), will decompose, free of reductive sulfonic acid, so it reflects a strong reduction activity.

Thiourea dioxide Packaing

Packing: 195KG/Drum

Belonging to common goods

Thiourea dioxide Storage

1. Stored in a cool dry place away from direct sunlight and water

2. Separated from oxidants and foodstuffs

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