Copper sulfide - Materials / Alfa Chemistry

NAVIGATION

Copper sulfide

PRICE INQUIRY

Catalog Number

ACMA00021066

Product Name

Copper sulfide

Category

CuS

Description

DryPowder; OtherSolid; WetSolid

IUPAC Name

sulfanylidenecopper

Molecular Weight

95.61g/mol

Molecular Formula

CuS;CuS

InChI

InChI=1S/Cu.S

InChI Key

BWFPGXWASODCHM-UHFFFAOYSA-N

Melting Point

1113

Purity

0.9999

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 sulfide serves multiple purposes across various industries, primarily due to its versatile chemical properties. Occurring naturally as the mineral chalcocite, it is found in black powder or lump form, and is notably soluble in nitric acid and ammonium hydroxide, while remaining insoluble in water. In luminous paints, electrodes, and solar cells, copper sulfi de functions effectively, facilitating energy and technology applications. It is instrumental in geological and analytical processes, being used for grain mounts, X-ray diffraction (XRD), and as microprobe standards for mineral identification. Additionally, it acts as a precursor in synthesizing copper(I) oxide and elemental copper, showcasing its pivotal role in chemical transformations. Copper sulfide is also used as a catalyst in various reactions. When subjected to heat in an oxygen-rich environment, it transforms into copper(II) oxide and sulfur dioxide, while in the absence of air, it decomposes into copper(II) sulfide and metallic copper. Reacting with nitric acid, it forms copper nitrate and hydrogen sulfide, and in aqueous cyanide solution, it leads to copper-cyanide complexes. Moreover, copper sulfide's interaction with polysulfide anions results in soluble copper polysulfides, demonstrating its reactive nature and broad applicability in scientific and industrial fields.

Color/Form

Black powder or lumps;Black hexagonal crystals

Complexity

Composition

Melting point= 220 °C (decomp)

Compound Is Canonicalized

Yes

Covalently-Bonded Unit Count

Defined Atom Stereocenter Count

Defined Bond Stereocenter Count

Deprecated CAS

62975-02-4, 1708103-91-6

EC Number

215-271-2

Exact Mass

94.901668g/mol

Formal Charge

Heavy Atom Count

Hydrogen Bond Acceptor Count

Hydrogen Bond Donor Count

Isotope Atom Count

MeSH Entry Terms

covellite;cpd with unspecified MF of cupric sulfide;cupric sulfide;CuS

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

Stability

STABLE IN AIR WHEN DRY; OXIDIZED TO COPPER SULFATE BY MOIST AIR.

Topological Polar Surface Area

32.1Å²

Undefined Atom Stereocenter Count

Undefined Bond Stereocenter Count

MSDS

Download MSDS

COA