Features: shiny white crystals, bitter, flammable, the relative density 
of 1.406. Melting point 170-172 ℃. Soluble in water and ethanol, soluble
 in water, insoluble in ether.
Use: medicine intermediate for the 
production of drugs. Rubber industry as vulcanization accelerator. 
Mining used as flotation agent, also used as fabric, paper processing 
agents, textile auxiliaries, oil and chemical additives. In metallurgy, 
electroplating, pesticide and other industries also have applications.
Product Quality: meet HG/T3266-2002
| Index Name / index / product level | 
Excellence | 
Grade | 
Qualified | 
| Thiourea (NH2)2CS% ≥ | 
99.0 | 
98.8 | 
98.0 | 
| Heating loss % ≤ | 
0.40 | 
0.50 | 
1.00 | 
| Ash % ≤ | 
0.10 | 
0.15 | 
0.30 | 
| Water Insoluble % ≤ | 
0.02 | 
0.05 | 
0.10 | 
| Thiocyanate (in CNS dollars) % ≤ | 
0.02 | 
0.05 | 
0.10 | 
| Melting point ℃ ≥ | 
171 | 
170 | 
- |