Copper(ii)sulfide

• CAS: 1317-40-4
• Catalog Number: ACM1317404
• Category: Metal & Ceramic Materials
• Molecular Weight: 95.61g/mol
• Molecular Formula: CuS;CuS
• Description: DryPowder; OtherSolid; WetSolid
• IUPAC Name: sulfanylidenecopper
• Canonical SMILES: S=[Cu]
• InChI: InChI=1S/Cu.S
• InChI Key: BWFPGXWASODCHM-UHFFFAOYSA-N
• Density: 4.76
• Solubility: 0.000033 G/100 CC WATER @ 18 °C.;Insoluble in water, ethanol, dilute acids and alkaline solutions;Virtually insoluble in water, but soluble in alkali cyanides and in aqueous ammonia solution with complex ion formation
• Application: Copper(II) sulfide serves multiple industrial purposes owing to its unique properties. It naturally appears as the mineral covellite and exhibits a blue-black color. This compound is predominantly used in applications requiring resistance to water solubility but is vulnerable to decomposition by nitric acid. Its oxidation into copper(II) sulfate in moist environments is hastened by alkaline conditions. Primarily, Copper(II) sulfide finds utility in antifouling paints, aiding in the protection of marine vessels. It also plays a significant role in textile printing, particularly in the development of aniline black dyes, and acts as an oxidizing agent and a varnish pigment. Moreover, this compound is integral to the composition of mixed catalysts, participates in the production of thin-film solar cells along with cadmium sulfide, and contributes to the functionality of solid-state electrodes. As a moderate conductor of electricity, it is further employed in photovoltaic systems, enhancing their performance.
• Color/Form: Black powder or lumps;Black hexagonal crystals
• Complexity: 2
• Covalently-Bonded Unit Count: 1
• Decomposition: Melting point= 220 °C (decomp)
• EC Number: 215-271-2
• Exact Mass: 94.901668g/mol
• Formal Charge: 0
• H-Bond Acceptor: 1
• H-Bond Donor: 0
• Heavy Atom Count: 2
• Monoisotopic Mass: 94.901668g/mol
• NSC Number: 47694
• Other Experimental: TRANSITION POINT @ 103 °C.;Stable in air when dry oxidized to copper sulfate by moist air;Decomposes at 220 °C; decomposed by hot nitric acid; it is stable in dry air, but is slowly oxidized to copper(II) sulfate in moist air.;transition 507 °C
• Refractive Index: INDEX OF REFRACTION: 1.45
• Rotatable Bond Count: 0
• Stability: STABLE IN AIR WHEN DRY; OXIDIZED TO COPPER SULFATE BY MOIST AIR.