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COPPER(II) SULFIDE

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COPPER(II) SULFIDE Basic information

Product Name:
COPPER(II) SULFIDE
Synonyms:
  • C.I. 77450
  • C.I. Pigment Blue 34
  • Copper Blue
  • Copper monosulfide
  • Copper sulfide (CuS)
  • Copper(2+) sulfide
  • CuS
  • Horace Vernet's Blue
CAS:
1317-40-4
MF:
CuS
MW:
95.61
EINECS:
215-271-2
Product Categories:
  • metal chalcogenides
  • Chalcogenides
  • Inorganics
  • Materials Science
  • Metal and Ceramic Science
Mol File:
1317-40-4.mol
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COPPER(II) SULFIDE Chemical Properties

Melting point:
220 °C (dec.) (lit.)
Density 
4.6 g/mL at 25 °C (lit.)
refractive index 
1.45
form 
powder
Specific Gravity
4.6 (20℃)
color 
Black
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
Stability:
Stable, but may be moisture senstive. Incompatible with strong acids, strong oxidizing agents.
CAS DataBase Reference
1317-40-4(CAS DataBase Reference)
EPA Substance Registry System
Copper sulfide (CuS) (1317-40-4)
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Safety Information

Safety Statements 
22-24/25
WGK Germany 
3
RTECS 
GL8912000
TSCA 
Yes
Hazardous Substances Data
1317-40-4(Hazardous Substances Data)

MSDS

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COPPER(II) SULFIDE Usage And Synthesis

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

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.

Hazard

Toxic by ingestion.

COPPER(II) SULFIDE Preparation Products And Raw materials

Preparation Products

COPPER(II) SULFIDESupplier

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