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Copper (II) Sulfide | CuS | CAS 1317-40-4


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Copper (II) Sulfide (CuS) has a high capacity for lithium-ion storage and excellent cycling stability, which could improve the energy density and cycle life of batteries. Heeger Materials can provide the best Copper (II) Sulfide (CuS) with a purity of 99.99% and 99.999% in size of lump and powder at a competitive price. The size can be tailored according to specific requirements.

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Data sheet

Purity99.99%-99.999% (4N-5N)
ProductCopper(II) sulfide

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Copper (II) Sulfide (CuS) is a chemical compound of copper and sulfur. It occurs in nature as the dark indigo-blue mineral covellite. It is a moderate conductor of electricity. Heeger Materials offers a selection of over 100 high-purity products, including metals, metal oxides, and metal salts, with 99.999% purity or higher.

Copper (II) Sulfide | CuS | CAS 1317-40-4

High-purity and ultra-high purity Copper (II) Sulfide (CuS) materials are crucial components for the research, development, and production of advanced technologies that require optimum properties, performance, and quality.

  • Chemical formula: CuS
  • CAS#: 1317-40-4
  • EINECS NO.: 215-271-2
  • Molar mass:95.611 g/mol
  • Appearance: black powder or lumps
  • Density:4.76 g/cm3
  • Melting point:above 500 °C (932 °F, 773 K) (decomposes)
  • Solubility in water:0.000033 g/100 mL (18 °C)
  • Solubility product (Ksp):6 x 10−37
  • Solubility: soluble in HNO3, NH4OH, KCN
  • insoluble in HCl, H2SO4
  • Magnetic susceptibility (χ):-2.0·10−6 cm3/mol
  • Refractive index (nD):1.45
  • Crystal structure: hexagonal

Related Products

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  • Copper (II) Sulfide (CuS) Powder
  • Copper (II) Sulfide (CuS) Sputtering Target


  • Used as an electrode material for lithium-ion batteries.
  • Used in photographic films and papers to create black-and-white images.
  • Use in solar cells.
  • Used as a catalyst in various chemical reactions.
  • Use in thermoelectric generators and waste heat recovery systems.
  • Used as a pigment in ceramics, glass, paints, and plastics.
  • Used as an additive in lubricants to reduce friction and wear in mechanical systems.


Copper (II) Sulfide (CuS) is carefully packaged in carton boxes with foam protection to minimize damage during storage and transportation and to preserve the quality of our products in their original condition. The vacuum packing is 1kg/bag, 25kg/barrel, or based on specific requirements.

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