Copper Sulfide CuS Powder CAS 1317-40-4

Product Name: CuS Powder Copper Sulfide Powder CAS 1317-40-4：
Purity: min 99%
Copper sulfide or copper sulphide is an inorganic compound. Copper sulfide chemical formula is CuS or CuI2CuII(S2)S. Therefore, two-thirds of the sulphur is actually a persulfate ion, and two-thirds of the copper is a cuprous ion, which is dark brown and extremely polar. Insoluble, it is one of the most insoluble substances (second only to silver sulfide, mercury sulfide, and sulphide sulfide) because its poor solubility makes some seemingly unacceptable reactions.

What is Copper Sulfide CuS Powder?
Copper sulfide is an inorganic compound with the chemical formula CuS, so it is actually a mixture of cuprous sulfide and supersulfide and is a black and brown amorphous powder or granular substance. It is extremely insoluble and is one of the most difficult substances to dissolve because its insolubility allows some seemingly impossible reactions to occur. Bonding in copper sulfide cannot be correctly described in terms of simple oxidation state forms because the properties of the Cu-S bond are somewhat covalent rather than ionic and have a high degree of delocalization, resulting in a complex electronic band structure.

CuS copper sulfide is a compound and mineral, which can be divided into three categories: single sulfide, disulfide and mixed single sulfide. Copper sulfide is naturally occurring in nature as a mineral, called cuprizone. It conducts electricity moderately. Both synthetic materials and minerals contain copper sulfide.
Copper sulfide describes a series of compounds and minerals from which minerals and synthetic materials are composed. Some copper sulfides are economically important ores. The main copper sulfide minerals include Cu2S(chalcocite) and CuS(copper porphyry).In the mining industry, bornite or chalcopyrite consisting of a mixed copper-iron sulfide is often referred to as "copper sulfide".In chemistry, "binary copper sulfide" is any binary compound of the elements copper and sulfur. Regardless of their origin, the composition of copper sulfides varies greatly at 0.5 Cu/S 2 and includes many non-stoichiometric compounds.

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 How is Copper Sulfide CuS Powder produced? 
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 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
 
Applications of Copper sulfide CuS powder:
Copper sulfide has the following uses:
Solar cell
Superionic conductor
photodetector
Conductive electrode
Photothermal spectral analysis conversion equipment
Microwave shielding coating
An active absorber of radio waves
Gas sensor
Infrared radiation polarizer

Storage Condition of Copper Sulfide CuS Powder:
The damp reunion will affect CuS powder dispersion performance and using effects, therefore, Copper Sulfide CuS Powder should be sealed in vacuum packing and stored in a cool and dry room, the Copper Sulfide CuS Powder can not be exposure to air. In addition, the CuS powder should be avoided under stress.

Packing & Shipping of Copper Sulfide CuS Powder:
We have many different kinds of packing which depend on the Copper Sulfide CuS Powder quantity.
Copper Sulfide CuS Powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Copper Sulfide CuS Powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.
 

Packing & Shipping of Copper Sulfide CuS Powder

FAQs of Copper Sulfide CuS Powder：
Q: What is copper sulfide used for?
A: Copper sulfide (CuS) powders find applications across a wide range of industries due to their unique properties. In the electronics industry, CuS is valued for its semiconducting behavior and is used in the production of solar cells, photodetectors, and other optoelectronic devices. The material's ability to absorb light efficiently makes it suitable for use in photocatalysis and as pigments in paints and coatings. Additionally, CuS is explored in environmental science for water treatment technologies, where it can help remove heavy metals from contaminated water through adsorption or precipitation processes. It also plays a role in battery technology as an electrode material, contributing to the development of high-performance energy storage systems.

Q: Is copper sulfide safe for human exposure?
A: Exposure to copper sulfide should be approached with caution. While bulk CuS is relatively stable under normal conditions, fine particles or dust can pose inhalation risks and may cause irritation to the respiratory system, eyes, and skin. Handling practices should include wearing appropriate personal protective equipment (PPE), such as gloves, safety goggles, and a respirator when dealing with airborne dust. Adequate ventilation is important to reduce exposure levels. Adhering to manufacturer guidelines and occupational health standards ensures safe handling. For detailed information on potential health effects and safety measures, always refer to the Safety Data Sheet (SDS) provided by the supplier.

Q: What is the formula and structure of copper sulfide?
A: Copper sulfide has the chemical formula CuS, indicating it consists of one copper atom (Cu) and one sulfur atom (S). This compound can exist in several crystal structures, but the most common form is covellite, which crystallizes in a hexagonal lattice. Covellite exhibits a layered structure where sheets of copper and sulfur atoms alternate, leading to interesting electronic properties that make it useful in semiconductor applications. Other forms of CuS, like chalcocite, have different crystal arrangements but share similar physical characteristics. The specific arrangement of atoms within these structures contributes to the material's color, hardness, and conductivity, making CuS versatile for various uses.

Q: Can copper sulfide be incorporated into composite materials?
A: Yes, copper sulfide can be integrated into composite materials to enhance certain properties such as electrical conductivity, catalytic activity, and photocatalytic performance. Composites containing CuS benefit from its inherent qualities while offering improved design flexibility and functionality. For example, incorporating CuS nanoparticles into polymer matrix composites can yield materials with tailored electrical properties suitable for use in sensors or flexible electronics. When used as a filler in ceramics or glasses, CuS can improve thermal stability and mechanical strength. Moreover, CuS can be dispersed within metal matrices to create nanocomposites with enhanced wear resistance and lubricating properties. The versatility of CuS makes it a valuable component in developing innovative materials across multiple industries, including electronics, energy, and environmental remediation.

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