Copper ii sulfide or cupric sulfide represented by the chemical formula CuS that bears the IUPAC name sulfanylidenecopper [1] is a black powder or lumps that is soluble in nitric acid but insoluble in water [3]. It occurs as the mineral covellite and is an ionic compound [3, 4].It is stable in air when it is dry but gets oxidized to copper sulfate by moisture in the air [1].

The cuprous sulphide, chalcocite (Cu-- 2 S) with a 79.8% Cu content is the richest and most valuable sulphide of copper (compare chalcopyrite, CuFeS 2, 34.5% Cu), but its conductivity has been little investigated. This article aims to contribute to the limited database with some inductive electromagnetic (EM) measurements.

Conceptual insights. Copper sulfides have been extensively studied owing to their high abundance, easy preparation, and outstanding chemical and physical properties. Here we report a hitherto unreported 2D copper (I) …

The common route for turning copper sulfide ores into metal is high temperature oxidation of sulfides to produce an impure liquid copper that is cast into slab-like anodes. Principal …

1. Introduction. Determination of the copper (and sulfur) oxidation state in copper sulfides is still a debated issue. Uncertainty in this matter goes hand in hand with the uncertainty in the real chemical composition and structure of copper sulfide materials, for which at least nine defined structural phases are known to exist [1]: chalcocite (Cu 2 …

The sulfide minerals represent higher temperatures and a slightly deeper setting than the sulfate minerals, which reflect the oxygen-rich environment near the Earth's surface. Sulfides occur as primary …

Carbon-supported copper sulfide catalysts were prepared by wet chemistry under He atmosphere. ... (Figure 5; also SI Figure S7) for representative samples with sulfur contents of 0.45 at% and 58.9 at%, …

These mines provided a representative view of the types of environmental impacts resulting from the development of copper sulfide deposits, focusing on pipeline spills, tailings failures and water collection and treatment failures. All of the mines () experienced pipeline spills or other accidental releases.

Here we show that coupling of copper sulfide (CuS) nanoparticles to antibodies targeting TRPV1 act as a photothermal switch for TRPV1 signaling in vascular smooth muscle cells (VSMCs) using near-infrared light. Upon irradiation, ... a Representative TEM images of VSMCs incubated with 0.4 mg mL −1 of CuS-TRPV1 or …

Miduk has sulfide copper mine and produces copper concentrate with an alloy of more than 30 percent. Flotation tests have been conducted using Sodium isobutyl ditiophosphate collectors (A3477) and ...

The novel mechanisms of formation and conversion of copper sulfide nanoparticles underline the role of sulfur species; this is important for understanding the structure and properties of copper sulfide nanoparticles in materials science and …

Copper antimony sulfide (CuSbS 2) 10, copper antimony selenide sulfide (CuSbSe x S 2−x) 11 and copper germanium selenide (Cu 2 GeSe 3) 12 have recently been investigated as both nanoflakes and ...

Copper Sulfide NP thin films were deposited on 1 mm thick 2.54 cm × 1.9 cm glass substrates via chemical bath deposition, after Vas-Umnuay et al. 21 (details in Supplementary Discussion S1). The ...

For low-grade primary copper sulfide ores, a few industrial bioleaching applications are in the advanced stages to make the copper extraction economically feasible, to some extent, because of our inability to capture the lifestyle and growth development of the leaching microorganisms during copper recovery from actual primary …

(a-h) Crystal structures of some representative copper sulfide phases. Each crystal phase is shown by its mineral name and composition. Blue and yellow spheres represent …

Published: 31 January 2024. Copper sulfide deposition and remobilisation triggered by non-magmatic fluid incursion in the single-intrusion Tongchang porphyry system, SE …

Modify: . Description. Covellite is a mineral with formula of Cu 1+ S or CuS. The IMA symbol is Cv. RRUFF Project. Copper (II) sulfide is a chemical compound of copper and sulfur. It occurs in nature as the mineral covellite. Copper is a chemical element with the symbol Cu and atomic number 29.

One element that may provide insight into the entire redox history of magmas is copper (Cu). In the range of oxygen fugacities (fO 2) typical of most igneous rocks, the valence state of Cu remains +1.However, its solid/melt partitioning behavior depends on the speciation of sulfur (S) (11, 12), which itself is redox-sensitive.At fO 2 values of ΔFMQ = …

The HBV core antigen (HBcAg) was selectively cut by the chiral copper (I) sulfide (Cu 2 S) NPs (4 0.5) both in vitro and in vivo under light with the wavelength of 808 nm. Due to the binding of Cu 2 S NPs to HBcAg as well as the large ROS …

Copper sulfide is a low-cost, environmental-friendly semiconductor that has many applications due to its non-toxic properties 1–3 and abundance. 1,4,5 Applications of copper sulfide include in thermoelectrics, 1,5 solar cells, 6,7 energy storage, 8,9 photocatalysis, 10 biotechnology, 11–13 and nanoelectronics. 14,15 One important …

Copper sulfide (CuS) is an inexpensive p-type semiconductor material [54] with the band gap of approximately 1.2–2.2 eV. Crystal structures of some representative copper sulfide phases are shown in Fig. 6 a [55].

Copper sulfide nanospheres have been successfully synthesized via hydrothermal, solvothermal, combustion, microwave, gas phase, sol–gel, and sonochemical methods. 17–20 Although each of these processes has its own advantages, the hydrothermal method is the preferred one owing to the ready availability of water, the low cost, and the ...

Representative Na + cation solvated species in the diluted (1 m) and concentrated ... In the first 50 cycles, the characteristic features of copper sulfide entirely disappear in 3.3 m NaFSI-PC and 3.3 m NaFSI …

The ANOVA indicates that the quadratic model is representative and the R 2 value of 0.92 is valid. ... it is well known that chalcopyrite and other copper sulfide minerals such as enargite are ...

In this study, copper sulfide (CuS) was found to effectively enhance the degradation of diverse organic pollutants in the ZVI/H 2 O 2 system. Moreover, the degradation performance for the actual industrial wastewater (i.e., dinitrodiazophenol wastewater) in the ZVI/H 2 O 2 system was impressively improved by 41% with CuS …

The conversion of a film on copper to in aqueous sulfide solutions has been followed using a combination of electrochemical techniques and in situ Raman spectroscopy. Oxide films were ...

sulfide mineral, any member of a group of compounds of sulfur with one or more metals. Most of the sulfides are simple structurally, exhibit high symmetry in their crystal forms, and have many of the properties of metals, including metallic lustre and electrical conductivity. They often are strikingly coloured and have a low hardness and a high ...

Question: Cadmium Sulfide (CdS) is a compound semiconductor that crystallizes in wurtzite structure under equilibrium conditions, which is based on also the "tetrahedral" bonding configuration we have discussed in class.a) Sketch the 2D representative bonding model for CdS (atoms represented as circles and covalent bonds as straight …

The measured ratios are considered representative of the anhydrite-depositing fluids. ... Pironon, J. et al. Copper sulfide deposition and remobilisation triggered by non-magmatic fluid incursion ...