Industrial Grade Anhydrous Thiourea 99% Ultra Low Moisture Content ≤0.1%
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
Key Attributes:- Chemical Formula: CS(NH2)2 (Dangerous chemical classification)
- Appearance: White crystal powder
- Density: 1.405
- Molecular weight: 76.12
- Melting point: 171-175℃
- Boiling point: 349 to 352°F (NTP, 1992)
Production Standard
CAS: 62-56-6
Meets GB/8218-2018 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°C |
Electroplating Grade
Problem: Common thiourea has high moisture content → plating solution decomposes → coating turns black with many pores
Our Solution: Moisture content ≤0.1% → Electrolyte stability increases by 30%
Case Study: PCB factory yield increased from 85% to 96% (with comparison chart)
Pharmaceutical Grade
Critical Control Points:- DMF residue <10ppm (HPLC chromatogram provided)
- Heavy metals <5ppm (conforming to ICH Q3D)
Applications: Synthesis of antibiotic intermediates and contrast agents
Research Grade
Provided Documentation:- Batch inspection raw data (downloadable PDF)
- Typical application literature (Lithium-Sulfur Battery/Corrosion Inhibitor Research)
Applications of Thiourea
1. Metalworking and Surface Treatment
- Plating additives: Brightener and stabilizer in electroplating solutions for silver, gold, and other precious metals to improve coating gloss and adhesion
- Metal corrosion inhibitor: Protects metal surfaces during pickling and rust removal processes
2. Ore Flotation and Metallurgy
- Flotation agent: Collector or inhibitor in metal ore flotation, especially for copper, lead, and zinc sulfide ores
- Precious metal extraction: Leaching agent for gold and silver extraction, reducing environmental pollution compared to cyanide methods
3. Chemical and Materials Science
- Resin modification: Improves heat resistance and mechanical properties of phenolic and urea-formaldehyde resins
- Plastic additives: Functions as antioxidant or stabilizer to extend product lifespan
- Functional materials: Used in synthesis of materials with special optical, electrical, or magnetic properties
4. Environmental Protection and Resource Recycling
- Wastewater treatment: Removes heavy metal ions (mercury, cadmium, lead) through stable complex precipitation
- Exhaust gas purification: Removes sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) from industrial emissions
- Battery recycling: Extracts valuable metals (cobalt, nickel) from used batteries
5. Medicine and Biotechnology
- Drug synthesis: Intermediate for antibacterial, antiviral, and anticancer drugs
- Protein research: Used in protein denaturation and renaturation processes
6. Agriculture and Food Industry
- Plant growth regulator: Potential to improve crop stress resistance and yield
- Food preservative: Functions as antioxidant to extend shelf life
7. Photography and Video Technology
- Developer: Accelerates development reaction and improves image quality in black and white photography
8. Laboratory and Scientific Research
- Analytical reagent: Detects metal ions (bismuth, antimony) and organic compounds
- Crystal growth: Regulates crystal morphology and size as solvent or additive
9. New Energy and Sustainable Development
- Battery technology: Improves charge/discharge performance and cycle life as electrolyte additive
- Hydrogen energy storage: Shows potential in hydrogen storage material research
10. Other Applications
- Preservative: Extends service life of industrial products
- Nanomaterial preparation: Functions as reducing agent or template agent
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 fee.
4. How about the price? Can you make it cheaper?
Customer benefit is our top priority. Prices are negotiable based on order conditions, and we guarantee the most competitive pricing.
5. Can I visit your company and factory in China?
Absolutely. You're welcome to visit our facility in Weifang, China. We provide airport pickup and drop-off services at Weifang Airport.
6. What if there is a quality problem?
We maintain a professional after-sales service team to promptly address any quality concerns.
