Cas No.62-56-6 Ninety-nine Percent Thiourea For Metal Surface Treatment Chemicals

Key attributes
Products: Thiourea 99% , CS ( NH₂) ₂,belongs dangerous chemical.
Physical and chemical properties:
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
Products meets GB/8218-2018:

Physical and chemical properties of Thiourea

Application of Thiourea in chemical industry

1. Electroplating industry
Brightener: thiourea is commonly used as an additive in electroplating solution,

especially in the process of silver, gold and copper plating, to improve the gloss and uniformity of the coating.

Stabilizer: Thiourea can stabilize metal ions in the plating solution and prevent their precipitation or decomposition.

2. Metal extraction and separation
Coordination agent:

Thiourea can form stable complexes with a variety of metal ions (such as gold, silver, platinum, mercury, etc.),

so it has important applications in the extraction and separation of precious metals.

Leaching agent: thiourea solution can be used to leach gold, silver and other precious metals from ores.

3. Corrosion inhibitors
Metal protection: Thiourea can be added as a corrosion inhibitor to pickling solution or cooling water

to protect metal surfaces from corrosion.

Acidic environment: In acidic media, thiourea can effectively inhibit the corrosion reaction of metals.

4. Chemical synthesis
Intermediates: thiourea is an important intermediate for the synthesis of many organic compounds,

such as medicine, pesticides, dyes and so on.

Catalyst: Thiourea is used as a catalyst or cocatalyst in some organic reactions.

Reducing agent: thiourea has certain reducing properties and can be used

to reduce certain metal ions or organic compounds.

5. Rubber industry
Vulcanization accelerator: thiourea is used as an accelerator in the rubber vulcanization process,

which can accelerate the vulcanization reaction and improve the performance of rubber products.

6. Textile industry
Dyeing aid: thiourea can be used as a dye aid to improve the uniformity and color fastness of dyeing.

Printing aid: In the textile printing process, thiourea can improve the printing effect.

7. Water treatment
Deoxidizer: Thiourea can be used to remove dissolved oxygen from water

and prevent corrosion of boiler and piping systems.

Heavy metal removal:

thiourea can form complexes with heavy metal ions for the removal of heavy metals in wastewater treatment.

8. Analytical chemistry
Reagent: Thiourea is often used in analytical chemistry as a reagent for the detection of metal ions

(such as bismuth, lead, mercury, etc.).

Masking agent: Thiourea can mask certain metal ions to avoid interfering with the analysis results.

9. The photographic industry
Developer: Thiourea can be used as a photographic developer to help reduce silver ions in the developer to metallic silver.

10. The pharmaceutical industry
Drug synthesis: thiourea is an important raw material for the synthesis of some drugs

(such as anti-thyroid drugs, anti-cancer drugs).

Antioxidants: Thiourea has certain antioxidant properties and can be used in pharmaceutical preparations.

11. Other applications
Pesticide synthesis: Thiourea is used in the synthesis of certain insecticides and herbicides.

Resin modification: thiourea can be used to modify certain resins to improve their properties.

FAQ
1.What is your payment term?
We can accept T/T and L/C at sight as payment term.

2.Are you able to deliver on time?
Of course! we specialised in this line for many years,
many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!

3.Do you provide free sample?
Yes, we can provide free sample . You only need to take the express fee.

4.How about the price?Can you make it cheaper?
We always take the customer’s benefit as the top priority.
Price is negotiable under different conditions, we are assuring you to get the most competitive price.

5.Can I visit your company and factory in China?
Sure. You are very welcomed to visit our company in Weifang, China.
(We will have someone responsible for picking up and dropping off at Weifang Airport)

6.What if there is a quality problem?
We have a professional and perfect after-sales service team, timely for you to deal with all problems.