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Ahmed KhanI'm a trader from Pakistan. I have bought sodium hempetaphosphate with Manager Hu and worked with him for 3 times. THKs Hu, now I have become a local agent. Riel Chemical is indeed a trusted partner. Highly recommended for friends who need high quality chemical products. -
Maria J GarciaOverall, I was impressed. Whether it is product details or service response speed, it is done very well, and customers are satisfied. Warmly tips: Could you guys add more payment methods？that would be great. -
LabrekeoLa vitesse de livraison est très satisfaisante et presque aucune inquiétude. Chaque fois que la coopération fonctionne sans à-coup. Recommandez sincèrement à d’autres acheteurs! -
محمد لاگولدشریک خوب، پیدا کردن چنین تامین کننده ای عالی است، برای شما آرزوی موفقیت دارم -
JackThe cooperation with Riel Chemical Co., Ltd. is our most sensible choice. Your team's efficiency, professionalism and innovative spirit are impressive, and we are looking forward to further cooperation in the future! -- Jack Sales manager -
ອາ ລິ ສໄປ ຈົນ ສຸດ ຂີດ, ຂອບ ໃຈ ຫລາຍໆ ທີ່ ມີ ທ່ານ! ບໍ່ ວ່າ ຈະ ເປັນ ການ ສະຫນັບສະຫນູນ ຢ່າງ ເຕັມທີ່ ໃນ ເວລາ ທີ່ ສໍາຄັນ ຫລື ການ ເອົາ ໃຈ ໃສ່ ຢ່າງ ລະມັດລະວັງ ຕໍ່ ລາຍ ລະອຽດ ຂອງ ການ ຮັບ ໃຊ້ ປະຈໍາ ວັນ, ເຮົາ ຮູ້ສຶກ ວ່າ ໄດ້ ຮັບ ຄວາມ ໄວ້ ວາງ ໃຈ. ຂໍ ໃຫ້ ມິດຕະພາບ ຍືນ ຍົງ ຕະຫລອດ ໄປ ແລະ ການ ຮ່ວມ ໄມ້ ຮ່ວມ ມື ຈະ ຍືນ ຍົງ ຕະຫລອດ ໄປ ——[ທີມການຄ້າເຄມີຂອງລາວ] -
Mr. ZhaoWe have been cooperating with Riel Chemical for five years. The product quality has always been perfect and the usage effect is good. Your company's sales manager is also particularly polite
99% Cas.62-56-6 Sulfourea White Crystal Particle For Electro Silvering
| Place of Origin | Weifang |
|---|---|
| Brand Name | Riel Chemical |
| Certification | SGS, ISO9001, CE |
| Model Number | 99% |
| Minimum Order Quantity | 1 ton |
| Price | USD 900～1100 FOB |
| Packaging Details | 25 kg polyethylene woven bag, moisture-proof, easy to transport |
| Delivery Time | 3～5 work day |
| Payment Terms | T/T , L/C |
| Supply Ability | 50 tons per day |
Contact me for free samples and coupons.
WhatsApp:0086 18588475571
Wechat: 0086 18588475571
Skype: sales10@aixton.com
If you have any concern, we provide 24-hour online help.
xProduct Details
| 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 |
| Density | 1.41 G/cm³ | Molecular Weight | 76.121 |
| Refractive Index | 1.654 | ||
| Highlight | cas.62-56-6 sulfourea,62-56-6 sulfourea,cas.62-56-6 thiourea |
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| Mode of loading | Maximum load | |
|---|---|---|
| 20 GP no pallet | 18 tons | |
| 20 GP with pallet | 15 tons |
Product Description
99% Cas.62-56-6 Sulfourea White Crystal Particle For Electro Silvering
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 |
| Density | 1.41 g/cm³ |
| Molecular weight | 76.121 |
| Refractive index | 1.654 |
Product Description
99% Cas.62-56-6 Sulfourea White Crystal Particle is a high-purity chemical compound primarily used for electro silvering applications.
Key Attributes
- Product Name: Thiourea 99% (CS(NH2)2)
- Classification: Dangerous chemical
- 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
CAS: 62-56-6
Product 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 |
Physical and Chemical Properties of Thiourea
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)
Melting point
176-178°C (decomposition)
Chemical Safety
Class 6.1 toxic substances
Solubility in water
About 13.7g/100 mL (20°C)
Solubility in ethanol
Slightly soluble
Chemical Properties
- 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, producing ammonia and hydrogen sulfide
- Hydrolysis reaction: Hydrolyzes under acidic/alkaline conditions to produce urea and hydrogen sulfide
Applications of Thiourea in Chemical Industry
1. Metal Surface Treatment and Plating
- Plating additives: Brightener/leveling agent for silver, gold, and zinc plating processes
- Acid copper plating: Inhibits copper ion precipitation, improves coating binding force
- Metal corrosion inhibitor: Added to pickling solutions (hydrochloric/sulfuric acid) to slow corrosion
2. Rubber and Plastics Industry
- Vulcanization accelerator: Precursor for secondary sulfonamide accelerators
- Plastic stabilizer: Used in PVC to inhibit thermal degradation and oxidation
3. Synthesis of Medicine and Pesticides
- Pharmaceutical intermediates: Key ingredient for sulfur-containing drugs
- Pesticide synthesis: Intermediate for insecticides, fungicides, and herbicides
4. Chemical Synthesis and Catalyst
- Reducing agent: Reduces nitro compounds to amino compounds
- Sulfur sources and ligands: Used for synthesis of thioamide and thiocarbamate
5. Textile and Printing Industry
- Printing and dyeing auxiliary: Reducing agent for vat dye leucochromes
- Flame retardant precursors: For synthetic sulfur-containing flame retardants
6. Environmental Protection and Resource Recycling
- Heavy metal adsorption: Forms complexes with heavy metal ions in wastewater
- Flue gas desulfurization: Auxiliary absorber to enhance desulfurization efficiency
7. Other Applications
- Photosensitive material: Component in photographic development solutions
- Analytical Chemistry: Masking agent or color developing agent for metal ion analysis
Product Advantages of Riel Chemical
1. Technological Innovation and R&D Capability
- Core technology with independent intellectual property rights
- Customized solutions for different industry requirements
2. Product Quality and Performance
- High purity and stability meeting ISO 9001 standards
- Excellent performance in high temperature and corrosion resistance
3. Environmental Protection and Sustainable Development
- Green production technology complying with REACH, RoHS regulations
- Waste recycling and resource utilization systems
4. Market Adaptability and Application Fields
- Diversified product line covering multiple industries
- Advance layout for emerging markets like solid-state batteries
5. Cost and Supply Chain Advantages
- Large-scale production with optimized processes
- Global production bases ensuring supply chain security
6. Service and Technical Support
- Full technical support from selection to after-sales
- Efficient logistics system for timely delivery
7. Industry Certification and Customer Recognition
- Products certified by FDA, UL, SEMI
- Long-term service for global enterprises with strong reputation
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 and guarantee timely delivery while maintaining top quality.
3. Do you provide free sample?
Yes, we provide free samples with the customer responsible for express fees.
4. How about the price? Can you make it cheaper?
We prioritize customer benefits and offer competitive, negotiable pricing based on order conditions.
5. Can I visit your company and factory in China?
Yes, you're welcome to visit our Weifang facility. We provide airport pickup/drop-off service.
6. What if there is a quality problem?
Our professional after-sales team promptly addresses all quality concerns.
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