Description

Copper(I) Sulfide is a high-purity inorganic compound with the chemical formula Cu₂S, widely recognized for its semiconductor and catalytic properties. This material is essential for industries requiring precise electronic characteristics and robust chemical performance. Key applications include its use as a primary material in photovoltaic cells, solid-state lubricants, and as a catalyst in various chemical synthesis processes. Global manufacturers and R&D facilities rely on consistent, high-grade Copper(I) Sulfide to ensure product reliability and process efficiency.

Application

• Photovoltaic Materials: A critical p-type semiconductor absorber layer in thin-film solar cells (e.g., Copper Indium Gallium Selenide - CIGS technology).
• Solid Lubricants & Coatings: Used in high-temperature and high-load bearing applications due to its low shear strength and stability.
• Catalysis: Serves as a catalyst or catalyst precursor in organic synthesis and desulfurization processes.
• Electrode Material: Employed in the research and development of lithium-ion and other advanced battery systems.
• Pigments & Dyes: Used in the production of certain anti-fouling paints and colored glass.
• Chemical Synthesis: Acts as a starting material for the synthesis of other copper compounds and nanomaterials.
• Sensor Technology: Investigated for use in gas sensors and photodetectors due to its optoelectronic properties.

Basic Information

Product Name	Copper(I) Sulfide
CAS No.	22205-45-4
Molecular Formula	Cu₂S
Molecular Weight	159.16 g/mol
Synonyms	Cuprous Sulfide; Dicopper Monosulfide; Copper(1+) Sulfide; Chalcocite (mineral name); Copper Monosulfide; Cuprite Sulfide; Copper Sulphide (I); Copper(I) Sulphide
EINECS	244-842-9

Quality Control

Our Copper(I) Sulfide is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes comprehensive analytical testing, including assay, particle size distribution, and trace metal analysis. A Certificate of Analysis (COA) detailing all test results is provided with each shipment. We adhere to relevant ISO standards and can support compliance documentation for REACH, TSCA, and other global regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong acids and strong oxidizing agents. The container must be kept tightly sealed to minimize exposure to moisture and air.

Specification

Item	Specification
Appearance	Black to grayish-black powder or crystals
Identification (IR/XRD)	Conforms to standard
Assay (Cu₂S)	≥ 99.0%
Particle Size (D50)	Contact for details
Iron (Fe)	≤ 0.05%
Lead (Pb)	≤ 0.01%
Loss on Drying	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.