High-purity thiourea is a fine chemical with extremely high purity and very low impurity content. Compared with ordinary thiourea, high-purity thiourea has higher purity and lower impurities. It is not only a deep processing product of ordinary industrial-grade thiourea, but also an indispensable key raw material in many high-tech fields.
CS(NH₂)₂
76.12
62-56-6
200-543-5
High-purity thiourea has a core advantage over ordinary industrial-grade thiourea due to its higher purity, making it irreplaceable in cutting-edge technologies and high-value-added industries that have strict requirements for impurity content, such as optics, semiconductors, electroplating, high-end pharmaceuticals, analytical reagents, electronic chemicals, and scientific research.
Due to its high purity, low impurity levels, and extremely low heavy metal content, high-purity thiourea exhibits more efficient chemical reactions during application, ensuring greater safety and stability, fewer side reactions, and significantly enhanced product purity and yield.
| Items | Data |
|---|---|
| Appearances | White crystals |
| Thiourea content，% | ≥99.5 |
| Drying loss，% | ≤0.2 |
| Residue on burning，% | ≤0.01 |
| Water-insoluble substance，% | ≤0.01 |
| Thiocyanate (such as SCN)，% | ≤0.005 |
| Initial melting temperature，℃ | ≥173 |
| Calcium ions，% | ≤0.005 |
Optics | Semiconductor | High-end Pharmaceuticals |
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Analytical Reagent | Electronic Chemistry | R&D |
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1.The electronic and semiconductor industries are the most valuable applications of high-purity thiourea. The presence of metal ion impurities (such as sodium, potassium, iron, copper, etc.) in ordinary thiourea can have disastrous effects on the performance of semiconductor devices. The extremely high purity and low impurity levels of high-purity thiourea ensure that it does not introduce contaminants during cleaning, etching, and deposition processes.
2.In the field of pharmaceutical synthesis and analysis, high-purity thiourea serves as an intermediate or catalyst, producing minimal by-products and facilitating easy purification, thereby ensuring the high purity and safety of the final pharmaceutical products.
3.High-purity thiourea demonstrates superior performance in the high-end electroplating sector. Although ordinary thiourea can also be used for electroplating, high-purity thiourea offers a higher quality electroplated layer. The low impurity content of high-purity thiourea prevents aging, decomposition, and the formation of impurity layers in the electroplating solutions, resulting in tighter, brighter, more uniform, and better-adhered coatings.
4.When synthesizing high-value-added fine chemicals, the purity of thiourea directly influences the product's grade and price.5. In the realm of scientific research, the reliability of high-purity thiourea eliminates abnormal experimental results caused by raw material impurities, ensuring the accuracy of data and the scientific validity of conclusions.
High-purity thiourea can be customized for packaging. Standard packaging options include 25 kg bags, 300 kg bags, and 500 kg bags, among others.
Storage: It should be sealed and stored in a cool, dry, and well-ventilated warehouse, avoiding direct sunlight.
Stability: Thiosemicarbazide is stable at room temperature but decomposes when heated, producing toxic nitrogen oxides and sulfur oxides gases.
Toxicity: Thiosemicarbazide is toxic and not for consumption. Prolonged contact or inhalation of its dust may cause health hazards; appropriate protective equipment (such as gloves, goggles, and dust masks) should be worn during handling.
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