Specifications of Thiourea
Item | Super quality | 1st Grade | Qualified |
Thiourea(CH4N2S) content% ≥ | 99.0 | 98.5 | 98.0 |
Loss on heating(H2O)% ≤ | 0.4 | 0.5 | 1.0 |
ASH:% ≤ | 0.10 | 0.15 | 0.30 |
Water- insoluble matter% ≤ | 0.02 | 0.05 | 0.1 |
Thiocyanate(with CNS)% ≤ | 0.02 | 0.05 | 0.1 |
Melting poirt℃ ≥ | 171 | 170 |
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Application
1) Thiourea Dioxide Production.
It is formed by the chemical reactions of thiourea and hydrogen peroxide. This product is a new kind of environmental protection product instead of sodium hydrosulfite.2) Mining Processing Industry.Thiourea is used as a flotation agent to refine gold mines in place of chloride.In metallurgical aspects , it is used in the production of electrolytic copper and gold.3) Pharmaceutical IntermediateIt is used for the synthesis of sulfathiazole, methionine, pig piece, anthelin, persantine, fluorouracil, forminitrazole, methylthiamine, propyl thiouracil, antiradon, ethoxid, leukemia and so on. 4) In Agriculture ChemistryIt is used as insecticides, fungicides, acaricide, nematicide, herbicides, plant growth regulators, rodenticide, virus prevention and so on. Controlling the germination period of the potato.5) Rubber AcceleratorThiourea is used as rubber vulcanization accelerator and stabilizer.The derivatives of thiourea can be used as an integral part of glue stock.6) In Cleaning IndustryThiourea used as metal anti-rust remover and cleaning corrosion inhibitor.Thiourea has the effect of promoting cleaning and inhibiting corrosion. It is mainly used in the cleaning of high pressure boiler and tower ware.7) Planting growth regulators Thiourea has the effect of weak kinetin on plants, which can delay leaf senescence and promote the fixation of carbon dioxide in darkness.
8) In Electroplating Industry.Due to the characteristics of thiourea’s molecular structure and its special affinity with noble metal, it has been widely used in electroplating industry.