Ninety nine Percent SC(NH2)2 Sulfourea For Galvanizing Gold Plating
Product Attributes
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 |
Molecular weight | 76.121 |
Refractive index | 1.654 |
Product Description
Thiourea 99% (CS(NH2)2) is a dangerous chemical used for galvanizing and gold plating applications.
Physical and Chemical Properties
- Appearance: White crystal powder
- Density: 1.405 g/cm³
- Molecular weight: 76.12 g/mol
- Melting point: 171-175°C
- Boiling point: 349-352°F (NTP, 1992)
Production Standard (GB/8218-2018)
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 |
Detailed Physical and Chemical Properties
- Molecular weight: 76.12 g/mol
- Appearance: White or light yellow crystalline powder, glossy
- Odor: Odorless or slightly sulphide odor
- Density: 1.405 g/cm³ (20°C)
- Chemical Safety: Class 6.1 toxic substances
- Solubility: Soluble in water (about 13.7g/100 mL, 20°C); slightly soluble in ethanol
- Acid base: Weakly basic, can react with acids to form salts
- Reducibility: Can be oxidized by oxidants (hydrogen peroxide, potassium permanganate)
- Complexation: Forms complexes with metal ions (Ag+, Au+, Cu²+)
- Thermal stability: Decomposes when heated above melting point
- Hydrolysis reaction: Produces urea and hydrogen sulfide under acidic/alkaline conditions

Product Advantages of Riel Chemical
- Technological innovation: Proprietary production processes and customization capabilities
- Product quality: High purity (99%), batch consistency, ISO 9001 certified
- Environmental compliance: Meets REACH, RoHS regulations with green production technology
- Market adaptability: Wide applications in electronics, automotive, construction industries
- Cost advantages: Large-scale production with vertical integration reduces costs
- Global presence: Production bases in China and Southeast Asia
- Technical support: Full-service solutions from selection to after-sales
- Industry recognition: Certified by FDA, UL, SEMI for high-end applications

Frequently Asked Questions
What is your payment term?
We accept T/T and L/C at sight as payment terms.
Are you able to deliver on time?
Yes, we specialize in this product line and guarantee timely delivery while maintaining top quality.
Do you provide free samples?
Yes, we provide free samples with the customer responsible for express shipping fees.
How about the price? Can you make it cheaper?
We offer competitive pricing that can be negotiated based on order quantity and conditions.
Can I visit your company and factory in China?
Yes, we welcome visits to our facility in Weifang, China, with airport pickup/dropoff service.
What if there is a quality problem?
Our professional after-sales team promptly addresses any quality concerns.