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COPPER(II) SULFIDE Basic information
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 Gravity4.6 (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 Reference1317-40-4(CAS DataBase Reference)
  • EPA Substance Registry SystemCopper sulfide (CuS) (1317-40-4)
Safety Information
  • Safety Statements 22-24/25
  • WGK Germany 3
  • RTECS GL8912000
  • TSCA Yes
COPPER(II) SULFIDE Usage And Synthesis
  • Chemical PropertiesCopper(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.
  • UsesIn antifouling paints; in preparation of mixed catalysts; in development of aniline black dye in textile printing.
  • DefinitionChEBI: A copper sulfide in which the metal is in the +2 oxidation state.
  • PreparationCopper(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.
  • HazardToxic by ingestion.
COPPER(II) SULFIDE Preparation Products And Raw materials
COPPER(II) SULFIDE(1317-40-4)Related Product Information
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