Copper Sulfide
Copper Sulfide - Related Videos
02:18
A Sensitive Visual Method for the Detection of Hydrogen Sulfide-Producing Bacteria
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2025
Source: Zhu, W., & Chu, W. Sensitive Visual Method for the Detection of Hydrogen Sulfide Producing Bacteria. J. Vis. Exp. (2022)This video demonstrates a sensitive visual method for the rapid detection of hydrogen sulfide–producing bacteria. A color change from yellow to black indicates bacterial activity through the formation of bismuth sulfide.
02:26
Preparation and Reactions of Sulfides
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2025
Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide. Asymmetrical sulfides can be synthesized by treating thiols with an alkyl halide and a...
02:17
Structure and Nomenclature of Thiols and Sulfides
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2023
Thiols and sulfides are sulfur analogs of alcohols and ethers, respectively, where the sulfur atom takes the place of the oxygen atom. Thus, thiols are generally represented as RSH, where R is an alkyl substituent and —SH is the functional group. On the other hand, in sulfides, the central sulfur atom is bonded to two hydrocarbon groups on either side. Depending upon the type of group, sulfides can be either symmetrical or asymmetrical. Both thiols and sulfides display a bent geometry, similar...
06:52
Positron Emission Tomography Using 64-Copper as a Tracer for the Study of Copper-Related Disorders
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Cited by 6 •
2023
The present protocol describes how to perform 64Cu PET/CT and PET/MRI imaging in humans to study copper-related disorders, such as Wilson disease, and the treatment effect on copper metabolism.
06:45
A Caenorhabditis elegans Nutritional-status Based Copper Aversion Assay
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Cited by 3 •
2017
Here, we present a Caenorhabditis elegans-specific assay designed to evaluate changes in copper aversion behavior and the ability to locate a common food source, as the organism progresses from a well-fed to starved nutritional state.
FAQs
Stoichiometry determines the relative amounts of copper and sulfur, while oxidation state distinguishes copper(I) from copper(II). Crystal structure adds another level of control by organizing the atoms in different arrangements. Together, these variables influence semiconducting behavior, electronic properties, and color, so compounds with related compositions can display meaningfully different chemical and material responses.
Cu₂S represents copper(I) sulfide, whereas CuS represents copper(II) sulfide. This oxidation-state difference accompanies different compositions and contributes to differences in electronic and optical behavior. Chemists therefore treat these formulas as distinct compounds rather than interchangeable labels, especially when interpreting phase identity, color, semiconducting properties, or redox transformations.
Phase transformations can change the arrangement or form of a copper sulfide material, while redox reactions alter the oxidation states involved. Because composition, oxidation state, and crystal structure govern properties, these processes can modify electronic or optical behavior. Studying them helps chemists connect reaction pathways with changes in material performance and phase identity.
Precipitation forms copper sulfide when copper ions combine with sulfide ions, producing a solid compound from chemical species in solution. This route is useful for studying how composition and phase identity emerge during synthesis. Examining the resulting material links ion combination to stoichiometry, crystal structure, color, and semiconducting behavior.
Two routes are emphasized: direct reaction between copper and sulfur, and combination of copper ions with sulfide ions. The first involves the elemental components, whereas the second supports precipitation-based formation from ionic species. In either case, chemists examine stoichiometry, oxidation state, and crystal structure to understand which copper sulfide form was produced.
Studies can reveal how a sample’s composition and structure relate to its semiconducting, electrical, and optical properties. Color offers an additional observable distinction among forms. These relationships allow chemists to investigate phase-dependent behavior rather than treating the material as chemically uniform, supporting interpretation of how synthesis and transformations affect functional performance.
Their electronic and optical properties make copper sulfides relevant to solar-energy materials and chemical sensors. Those properties provide a basis for examining the compounds in energy-related and sensing applications, while composition and crystal structure help determine behavior. This connects inorganic chemistry with the design of functional materials whose performance depends on tunable material characteristics.
Photocatalysis and nanomaterial research extend copper sulfide chemistry beyond phase identification. They focus on using the compounds’ electronic and optical characteristics in functional systems. Research can therefore connect synthesis, phase transformations, and redox chemistry with applications that require tailored material behavior, including photocatalytic processes and other functional nanomaterials.