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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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2005
Total Annual:
4500000-5000000
Employee Number:
120~200
Ecer Certification:
Verified Supplier
Riel Chemicals – Leading Enterprise in Basic Chemical Manufacturing
Who we are ?
Established in 2005 and headquartered in Weifang City, Shandong Province—a hub of China’s chemical industry—Riel Chemicals is a national high-tech enterprise specializing in the R... Riel Chemicals – Leading Enterprise in Basic Chemical Manufacturing
Who we are ?
Established in 2005 and headquartered in Weifang City, Shandong Province—a hub of China’s chemical industry—Riel Chemicals is a national high-tech enterprise specializing in the R...