| Identification | More | [Name]
COPPER(II) SULFIDE | [CAS]
1317-40-4 | [Synonyms]
COPPER(II) SULFIDE
COPPER (II) SULPHIDE
COPPER SULFIDE
COPPER SULFIDE BLACK
CUPRIC SULFIDE
CUPRIC SULPHIDE
C.I. 77450
C.I. Pigment Blue 34
Copper Blue
Copper monosulfide
Copper sulfide (CuS)
Copper(2+) sulfide
CuS
Horace Vernet's Blue
Monocopper monosulfide
Oil Blue
Copper(ic) sulfide
copper sulphide
Coppersulfidemeshblackpowder
Copper(II) sulfide, powder, #100 mesh, 99+% metals basis | [EINECS(EC#)]
215-271-2 | [Molecular Formula]
CuS | [MDL Number]
MFCD00016066 | [Molecular Weight]
95.61 | [MOL File]
1317-40-4.mol |
| Chemical Properties | Back Directory | [Appearance]
Black powder | [Melting point ]
220 °C (dec.) (lit.) | [density ]
4.6 g/mL at 25 °C(lit.)
| [refractive index ]
1.45 | [solubility ]
insoluble in H2O, ethanol, dilacid, alkaline solutions | [form ]
powder
| [color ]
Black | [Specific Gravity]
4.6 (20℃) | [Stability:]
Stable, but may be moisture senstive. Incompatible with strong acids, strong oxidizing agents. | [Water Solubility ]
Soluble in nitric acid, ammonium hydroxide, potassium cyanide. Insoluble in water, ethanol, hydrochloric acid ,dilute acids, sulfuric acid, alkali cyanides, aqueous ammonia and alkaline solutions. | [Sensitive ]
Air & Moisture Sensitive | [Merck ]
14,2965 | [Solubility Product Constant (Ksp)]
pKsp: 35.2 | [Exposure limits]
ACGIH: TWA 1 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3 | [CAS DataBase Reference]
1317-40-4(CAS DataBase Reference) | [EPA Substance Registry System]
Copper sulfide (CuS) (1317-40-4) |
| Hazard Information | Back Directory | [Hazard]
Toxic by ingestion. | [Chemical Properties]
Copper(II) sulfide, CuS, [1317-40-4], MW 95.6, occurs in nature as the blue-black mineral covellite, [19138-68-2]. It is insoluble in water but is decomposed by nitric acid. In moist air, it is oxidized to copper(II) sulfate. The rate of oxidation is accelerated in the presence of alkali. Copper(II) sulfide is used as an antifouling pigment and in the preparation of aniline black dyes. | [Uses]
Copper(II) sulfide is used in antifouling paints, mixed catalysts and to develop aniline black dyes in textile printing. Further, it is used as a varnish pigment and an oxidizing agent. In addition, it is used as a component of solid state electrodes and thin-film solar cell with cadmium sulfide. It is a moderate conductor of electricity and used in photovoltaics. | [Uses]
In antifouling paints; in preparation of mixed catalysts; in development of aniline black dye in textile printing. | [Definition]
ChEBI: A copper sulfide in which the metal is in the +2 oxidation state. | [Preparation]
Copper(II) sulfide is prepared by heating copper(I) sulfide in the presence of excess sulfur in a hydrogen atmosphere. Ethanol solutions of anhydrous copper(II) chloride precipitate the copper(II) sulfide on the addition of hydrogen sulfide. | [General Description]
Cu63 NMR, X ray photoelectron spectroscopy,2 copper sulfide CuS was studied in detail. |
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