Buy Ninety-nine percent Sulfourea White Crystal Particle For Drilling Deaerator

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:

Application of Thiourea in chemical industry

1. Metal surface treatment and plating
Plating additives:

As a brightener or leveling agent, it is used in silver plating, gold plating,

zinc plating and other processes to improve the uniformity and gloss of the coating.

In acid copper plating, thiourea can inhibit the precipitation of copper ions and improve the binding force of the coating.

Metal corrosion inhibitor:

It is added to the pickling solution (such as hydrochloric acid, sulfuric acid)

to slow the corrosion rate of metals (steel, copper).

Combined with corrosion inhibitors (such as ulotropine) to enhance the protective effect.

2. Rubber and plastics industry
Vulcanization accelerator:

As a precursor of secondary sulfonamide accelerators, it accelerates rubber vulcanization process

and improves cross-linking efficiency.

Suitable for natural rubber and synthetic rubber (such as styrene butadiene rubber, neoprene rubber).

Plastic stabilizer:

Used in plastics such as PVC to inhibit thermal degradation and oxidation during processing.

3. Synthesis of medicine and pesticides
Pharmaceutical intermediates:

A key ingredient in the synthesis of sulfur-containing drugs, such as the anti-thyroid drug methimazole.

Used for the preparation of sulfonamides and thiazoles.

Pesticide synthesis:

Intermediate of synthetic insecticides (e.g. Thiamethoxam), fungicides (e.g. Thiobacillam) and herbicides.

4. Chemical synthesis and catalyst
Reducing agent:

Reduction of a nitro compound in an organic reaction to an amino compound (e.g. Nitrobenzene → aniline).

Selective reduction of metal ions .

Sulfur sources and ligands:

Used for the synthesis of thioamide, thiocarbamate and other sulfur-containing organic matter.

Participates in the preparation of metal complexes as ligands (e.g. forms stable complexes with copper and nickel).

5. Textile and printing industry
Printing and dyeing auxiliary:

Used as a reducing agent for curing dye dyeing (VAT dye leucochromes).

Improve dye permeability and color fastness in wool dyeing.

Flame retardant precursors:

Synthetic sulfur-containing flame retardants (such as thiourea-formaldehyde resin) for flame retardant treatment of textiles.

6. Environmental protection and resource recycling
Heavy metal adsorption and recovery:

Form complexes with heavy metal ions (such as mercury, lead, cadmium) in wastewater for wastewater treatment.

Extractor for extracting precious metals (such as gold and silver) from electronic waste.

Flue gas desulfurization:

In some processes, it is used as an auxiliary absorber to enhance the desulfurization efficiency.

7. Other applications
Photosensitive material:

Components used in photographic development solution to adjust development speed.

Analytical Chemistry:

As a masking agent or color developing agent,

used in the quantitative analysis of metal ions (such as bismuth, palladium determination).

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.