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How is copper sulfide made?

Views : 97
Author : lql
Update time : 2023-02-06 13:03:24
What is Copper sulfide?
Copper sulfide is an inorganic compound with the chemical formula of CuS or (Cu+)3(S2-)(S2-), so it is actually a mixed salt of cuprous sulfide and supersulfide. It is dark brown and extremely insoluble, and it is one of the most insoluble substances (second only to silver sulfide, mercury sulfide,  sulfide, platinum sulfide, etc.) because its insolubility makes some seemingly impossible reactions.
Production method of Copper sulfide Powder
No sulfur and copper directly mixed heating to prepare copper sulfide because the oxidation of sulfur is weak; the reaction will generate a mixture of copper sulfide and cuprous sulfide:
2Cu+S====Cu2S ,  Cu+S====CuS
Can make copper powder and sulfur dissolved in carbon disulfide reaction at 100 to produce pure copper sulfide:
Cu+S==100 , CS2==CuS
Laboratory preparation of copper sulfide is usually prepared by adding H2S gas or soluble sulfide (such as sodium sulfide) into copper salt (mainly copper chloride and copper sulfate) solution through a double decomposition reaction:
CuCl2+H2S====CuS+2HCl (weak acid to strong acid)
This reaction can occur because copper sulfide is too insoluble, causing the equilibrium to shift to the right.
CuSO4+Na2S====CuS+Na2SO4
Uses of Copper sulfide Powder
The application fields mainly include the inorganic industry for manufacturing other feed salts such as cuprous chloride, cupric chloride, cuprous pyrophosphate, cuprous oxide, copper acetate, copper carbonate, etc. And pigment industry is used to manufacture copper-containing monoazo dyes such as reactive brilliant blue and reactive violet.
1. Organic industrial field
It is used as a catalyst for the synthesis of perfume and dye intermediates and a polymerization inhibitor for methyl methacrylate.
2. Coating industry
Used as a bactericide for producing antifouling paint for ship bottom.
3. Electroplating industry
It is used as the main salt and copper ion additive for all-bright acidic copper plating, and it is used as a mordant and oxygen aid for fine dyeing cloth in the printing and dyeing industry.
Price of Copper sulfide powder
Copper sulfide powder particle size and purity will affect the product's price, and the purchase volume can also affect the cost of Copper sulfide powder. A large amount of large amount will be lower. The price of Copper sulfide powder can be found on our company's official website.
Copper sulfide powder supplier
Luoyang Tongrun Nano Technology Co. Ltd.  (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Copper sulfide powder, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Copper sulfide powder, you are welcome to contact us or inquire any time.
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