Copper ii sulfide or cupric sulfide stood for by the chemical formula CuS that bears the IUPAC name sulfanylidenecopper <1> is a black powder or lumps that is soluble in nitric acid however insoluble in water <3>. It occurs as the mineral covellite and also is one ionic link <3, 4>. That is stable in air as soon as it is dry but gets oxidized come copper sulfate by humidity in the waiting <1>.
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Copper II Sulfide
Copper II Sulfide Identification
|CAS Number||1317-40-4 <1>|
|PubChem CID||14831 <1>|
|ChemSpider ID||145403 <2>|
|EC Number||215-271-2 <1>|
Composition and also Synthesis
Copper ii sulfide can be all set by a reaction between molten sulfur and also copper that is later followed by boiling in salt hydroxide <1>.
Cu + S = CuS
Copper II Sulfide Formula
Properties and also Characteristics that Copper 2 Sulfide
|Molar mass/molecular weight||95.606 g/mol <1>|
|Color/appearance||Black flour <3>|
|Melting point/freezing point||220°C, 428°F (decomposes) <3>|
|Boiling point||N/A <3>|
|Density||4.6 g ml-1 at 25°C <3>|
|State of matter at room temperature (normal phase)||Solid <3>|
|Refractive index||1.45 <1>|
|Solubility in water||N/A <1>|
|Crystal structure||Hexagonal <1>|
Copper II Sulfide Structure
Prominent reactions of CuS
Copper ii sulfide reacts v oxygen at a temperature that 300-500°C to form copper oxide and also sulfur dioxide <7>.
2CuS + 3O2 = 2CuO + 2SO2
Cupric Sulfide UsesIn the ready of blended catalysts <3>.In occurring aniline black dye for textile print <3>.In antifouling paints <3>.In photo optic applications and as a semiconductor <6>.
Is the Dangerous
Cupric sulfide is toxicity if ingested. Contact with eyes and also skin and inhalation must be avoided since it may cause irritation. It has actually a resilient harmful impact on aquatic life <1, 3, 5>. Under fire conditions, the decomposes to produce hazardous copper oxides and also sulfur oxides <8>.
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