Product Description
| Molecular Formula | CH4N2O4S |
| Molecular Weight | 140.1185 |
| CAS | 62-56-6 |
| Purity | 99% min |
| Appearance | White to almost white crystals |
| HS Code | 2930909099 |
| Packaging | 25 kg/bag. In woven bag lined with plastic, net wt. 25kgs/bag or 50kgs/bag or in ton bags. Or according to the commodity inspection or foreign requirement to packing for exporting products. |
COA
|
Item |
Standard |
Result |
|
Appearance |
White crystalline |
White crystalline |
|
Thiourea Assay |
99%min |
99.09% |
|
Loss on heating |
0.40%max |
0.29% |
|
Ash |
0.10%max |
0.10% |
|
Water Insoluble Matter |
0.02%max |
0.02% |
|
Thiocyanate (as CNS) |
0.02%max |
0.02% |
|
Melting Point |
≥171℃ |
171℃ |
Uses and Applications
The product is wildly used in pharmaceutical industry, agricultural, chemicals, metallurgical industry, petroleum and so on. It is also main material for producing thiourea dioxide(CH1N2O2S).
Chaotropic agent; strong denaturant. Increases solubility and recovery of proteins
Used in determination of bismuth.
In animal glue liquifiers and silver tarnish removers. Photographic fixing agent and to remove stains from negatives; manufacture of resins; vulcanization accelerator; a reagent for bismuth, selenite ions.
Thiourea is used in the manufacture of resins,as a vulcanization accelerator, and as aphotographic fixing agent and to removestains from negatives.
The most common uses for thiourea have been for the production of thiourea dioxide (30%), in leaching of gold and silver ores (25%), in diazo papers (15%), and as a catalyst in the synthesis of fumaric acid (10%) (IARC 2001). It has also been used in the production and modification of synthetic resins. Other uses of thiourea are as a photographic toning agent, in hair preparations, as a drycleaning agent, in the synthesis of pharmaceuticals and pesticides, in boiler-water treatment, and as a reagent for bismuth and selenite ions. It has also been used in textile and dyeing auxiliaries, in the production of industrial cleaning agents (e.g., for photographic tanks and metal surfaces in general), for engraving metal surfaces, as an isomerization catalyst in the conversion of maleic to fumaric acid, in copper-refining electrolysis, in electroplating, and as an antioxidant. Other uses have included as a vulcanization accelerator, an additive for slurry explosives,as a viscosity stabilizer for polymer solutions, and as a mobility buffer in petroleum extraction. It is also used as an ingredient of consumer silver polishes (HPD 2009), and has been used in the removal of mercury from wastewater by chlorine-alkali electrolysis.
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