Cas 62-56-6 High Purity Thiourea Chemical Formula CH₄N₂S (SC(NH₂)₂)
Product Specifications
Attribute | Value |
CAS | 62-56-6 |
EINECS | 200-543-5 |
Appearance | White glossy crystal |
Crystalline hydrate | Water-free |
Available port | Qingdao Port, Tianjin Port, Shanghai Port, Lianyungang Port, Fujian Port, Guangzhou Port |
Life span | Two years |
Fusing point | 176 - 178 ℃ |
Molecular weight | 76.121 |
Crystal structure | Monoclinic crystal system |
Product Description
Cas62-56-6 CH4N2S Thiocarbamide White Crystal Particle For Metal
Key Attributes
- Ultra-high purity - Purity ≥99.5%, with extremely low impurity content, suitable for precision chemical synthesis and high-end industrial applications.
- Versatility - Widely applied in multiple fields such as metallurgy, electroplating, medicine, and printing and dyeing.
- High-efficiency metal coordination - Excellent selective leaching ability for precious metals such as gold and silver, with high recovery rate.
- Environmental protection technology - Strict pollution control during production, compliant with RoHS and REACH standards.
- Stable supply - Large-scale production, sufficient inventory, and support for customized packaging (25kg per bag, ton bags, etc.)
Production Standard
No. | Items for detecting and analyzing | Standard value |
1 | Thiourea (CS(NH2)2) %≥ | 99.0 |
2 | Heating interval %≤ | 0.35 |
3 | Chemical moisture %≤ | 0.01 |
4 | Water insoluble %≤ | 0.02 |
5 | Thiocyanate (CNS) %≤ | 0.02 |
6 | Melting point (centigrade) | 171 OC |
Applications of Thiourea
1. Metalworking and Surface Treatment
- Plating additives: Used as brightener and stabilizer in electroplating solutions for silver and gold plating to improve coating gloss and adhesion.
- Metal corrosion inhibitor: Protects metal surfaces from excessive corrosion during pickling and rust removal.
2. Ore Flotation and Metallurgy
- Flotation agent: Used in metal ore flotation, especially for copper, lead, and zinc sulfide ores to improve metal recovery.
- Precious metal extraction: Alternative leaching agent for gold and silver extraction, reducing environmental pollution compared to cyanide methods.
3. Chemical and Materials Science
- Resin modification: Improves heat resistance, mechanical properties and processing of phenolic and urea-formaldehyde resins.
- Plastic additives: Functions as antioxidant or stabilizer to extend plastic product lifespan.
4. Environmental Protection and Resource Recycling
- Wastewater treatment: Removes heavy metal ions (mercury, cadmium, lead) through stable complex precipitation.
- Battery recycling: Extracts valuable metals like cobalt and nickel from used batteries.
5. Medicine and Biotechnology
- Drug synthesis: Important intermediate for antibacterial, antiviral and anticancer drugs.
- Protein research: Used for protein denaturation and renaturation in biotechnology applications.
Key Performance Applications
- Precious metal metallurgy: Gold leaching rate over 95%, toxicity 1/100 of cyanidation method, reduces wastewater treatment costs by 50%.
- Electroplating additives: Enhances coating density, reduces pores, extends salt spray test time to over 120 hours.
- Pharmaceutical intermediates: Used in synthesis of antithyroid drug methimazole, purity meets EP9.0 standard.
- Dyeing and printing: More stable than sodium hyposulfite, storage life up to 12 months.
Frequently Asked Questions
1. What is your payment term?
We accept T/T and L/C at sight as payment terms.
2. Are you able to deliver on time?
Yes, we specialize in this product line with many years of experience. Our customers choose us because we consistently deliver on time while maintaining top quality.
3. Do you provide free samples?
Yes, we provide free samples. Customers only need to cover the express shipping fee.
4. How about the price? Can you make it cheaper?
Customer benefit is our top priority. Prices are negotiable under different conditions, and we guarantee the most competitive pricing.
5. Can I visit your company and factory in China?
Yes, you're welcome to visit our company in Weifang, China. We provide airport pickup and drop-off services at Weifang Airport.
6. What if there is a quality problem?
We have a professional after-sales service team ready to promptly address any quality concerns.