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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 …
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Furthermore, the semiconducting copper sulfide (CuS), a metal chalcogenide, with a narrow bandgap that exhibits acceptable photocatalytic and exceptional photothermal properties, has exceptional antibacterial activity when doped with different metals and non-metals. ... (objective lens 16 mW, Olympus, Tokyo, Japan) and …
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average residential gas usage. The primary objective of this study was to evaluate and qualify the susceptibility of both bare copper tube and tin-lined copper tube to corrosion and hydrogen sulfide attack when conveying gas typically supplied to the Southern California Gas Company service areas. Comparison to the predetermined performance
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of sulfide copper-nickel, copper-pyrite deposits, and ores of copper sandstones and slates are primarily pro-cessed abroad. The amount of copper in copper sand-stones and slates varies from 1 to 6%, in sulfide cop-per-nickel ores from 1.1 to 4.9%, in copper-pyrite ores from 0.1 to 3%, and in copper-porphyry ores from 0.4 to 1.2%.
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Sahu and Chmielowiec identified the cell voltages in their cell as 0.06 volts for rhenium sulfide, 0.33 volts for molybdenum sulfide, and 0.45 volts for copper sulfide. "For most of our reactions ...
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Copper sulfide (CuS) rod shaped nanostructures with an average length 8 to 10 nm are synthesized through green chemical route using biodegradable starch as a …
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Herein, an easy two-step heating approach to copper sulfides was developed. Petal-like CuS, spherical Cu 2 S and hexagonal Cu 1.75 S were obtained by adjusting the volume ratio between the two solvents used, ethylene glycol and triethylenetetramine. The as-synthesized CuS, Cu 1.75 S, and Cu 2 S, were used as …
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All copper sulfides require the presence of Fe 3+ and O 2 as oxidizing agents for leaching to occur. The copper sulfide is oxidized by Fe 3+.The resulting Fe 2+ is reoxidized to Fe 3+ by O 2.The Fe(II)/Fe(III) redox couple acts in a catalytic manner in these reactions (shown for elevated-temperature reaction conditions where the sulfur-containing product …
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Copper can be extracted from non-sulfide ores by a different process involving three separate stages: Reaction of the ore (over quite a long time and on a …
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Copper sulfide, also known as CuS, is a p-type semiconductor that is commonly used as a cathode electrode material in quantum dot solar cells. It has a band gap between 1.1 and 1.4 eV and is formed by dissolving the zinc component of brass foil in hydrochloric acid to develop a condensed Cu2S film.
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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 ...
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The objective of this study was to investigate the floatability of a complex Kansanshi mixed copper ore comprising sulphide and oxide minerals with a view to achieving maximum copper recoveries and grades. The major focus of the study was on the use of two different methods of sulphidisation, viz. slug addition and controlled …
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The objective of this research was to address this point by studying the effects of sulfide addition before and after copper inhibition in acetate-fed, methanogenic systems. Anaerobic toxicity assays and batch kinetic studies were performed using serum bottles with an anaerobic acetate enrichment culture.
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Bookmark. A demonstration with some fantastic chemistry. This demonstration involves some fantastic chemistry and makes an excellent introduction to …
DetailsThere is a large amount of cobalt element in African cobalt-rich copper sulfide ore (CRCS), and the copper to cobalt ratio in the mineral is up to 3:1, which means that ... It is a common method to determine the model function by matching the calculated model function with the objective function under heterogeneous and non-isothermal …
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The present work pursues the electrochemical study of BaS-based electrolyte in the. context of copper extraction from sulfides, with the objective to answer …
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Thus the main objective of this study is to understand the beneficial effects of metal sulfide-based inactive fillers. Specifically, CuS with a hexagonal structure composed of Cu-S tetrahedral units with a high electronic conductivity (10 −3 S.cm −1) comparable to the TiO 2 system was selected as an inactive filler [37], [38], [39]. Overall ...
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different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals from a nickel-copper sulphide ore. 2. Materials and Methods 2. 1. Materials The nickel-copper sulphide ore used in this study was supplied by Trojan Nickel Mine located in Bindura, Zimbabwe.
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Objective To experimentally determine the chemical formula of copper sulfide. Introduction The empirical formula of a compound represents the lowest whole number ratio of its atoms. Sulfur, a group 16 non-metal, commonly forms just one ion, S2- (sulfide). Copper, like many transition metals, forms variable type cations.
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1. Introduction. Environmental friendly approaches for the proper management of copper production including processing of low grade ore and tails have been developed (Zhao et al., 2017, Li et al., 2013).Heap bioleaching is the appropriate technology to handle low grade copper sulfide ores bearing chalcopyrite, idaite, bornite, chalcocite and …
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Among various metal chalcogenides, metal oxides and phases of copper sulfide, copper(II) sulfide (covellite, CuS) nanostructures have enjoyed special attentiveness from researchers and scientists across the world owing to their complicated structure, peculiar composition and valency, attractive and panoramic morphologies, …
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Copper ii sulfide definition, chemical formula, identification, preparation, properties (molar mass, color, solubility in water), what is it used for, toxicity
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3.1 Anilite (Cu 7 S 4). Several polymorphs of copper sulfide, of general formula Cu x S (1 ≤ x ≤ 2), have been characterized. In these structures, the location of Cu atoms in the close-packed S lattice is not well identified and their positions change as a function of the composition (x).In a copper-rich environment, the experimentally …
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2.1. Copper sulfide nanospheres and nanocages. 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 …
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The initial mass of copper m (Cu initial) was calculated from the percentage and mass of the ore loaded in the percolator. The copper mass of each phase was calculated with the use of the standard formula (Formula (2)): m (Cu) = C (Cu)·V. (2) where C (Cu) is the copper concentration and V is the solution volume.
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The objective of this research work is to study the amenability of the Hofrat En Nahas copper sulfide ore to be concentrated by Sulfidization-flotation. It is worth mentioning, that the present ...
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The flotation apparatus was tested in the separation of copper sulfide (Cu 2 S, 99.5% pure metal basis, Alfa Aesar) from Fe 2 O 3 (99.5% pure metal basis, Alfa Aesar). Post flotation, the ...
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Copper Sulfide. Copper sulfide is a material that is cheap, abundant, and non-toxic, making it ideal for use in solar cell applications as an absorber layer in PV conversion structures. …
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As presented in FESEM (Fig. 1 a-c and Fig. S1), the as-synthesized Cu 1– x Co x S exhibits a 3D flower-like morphology consisting of ultrathin 2D nanosheets, similar with that of pristine CuS materials.Particularly, the Cu 1– x Co x S nanosheets synthesized with high cobalt doping content show reduced average particle size. Moreover, the …
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Copper is most commonly present in the earth's crust as copper-iron-sulphide and copper sulphide minerals, for example, chalcopyrite (CuFeS2), bornite (Cu5FeS4) and chalcocite (Cu2S).
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The primary sulfide minerals of copper have been difficult to leach for the purpose of direct copper extraction. In particular, chalcopyrite has been observed to undergo a type of "passivation" under a variety of oxidative leaching conditions. Over the last 10–15 years, a variety of biological and chemical leaching processes have emerged ...
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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 …
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Copper sulfide, also known as CuS, is a p-type semiconductor that is commonly used as a cathode electrode material in quantum dot solar cells. It has a band gap between 1.1 and …
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Copper (I) sulfide NPs were synthesized using a previously reported method 53. Copper (I) acetate (48 mg), TOPO (1 g) and octadecene (30 ml) were mixed in a three-neck flask, degassed under vacuum ...
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1. Background. Different types of copper-containing minerals within copper mining sites, such as pyrite, chalcopyrite, and chalcocite, are generally considered law-grad copper minerals ( 1 - 4).Generally, bioleaching proposes the con- version of metals into water-soluble forms by micro- organisms ( 4 - 6).In terms of low-grade mineral depletion, …
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Furthermore, cobalt sulfide, in addition to its various applications, is comparatively cheap, have low toxicity and widely available. Cobalt sulfide exists in a number of phases including CoS, CoS 2, Co 2 S 3, Co 3 S 4, Co 9 S 8 and Co 1-x S, depending on the ratio of cobalt to sulfur in the molecule which makes it a relatively …
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The metal, copper, and the non-metal, sulfur (in the vapor state), will be chemically combined to form a compound, copper sulfide, which will have completely different properties than the copper or the sulfur. Synthesis reaction: metal + nonmetal -> compound copper + sulfur vapor? copper sulfide By using a predetermined amount of copper and …
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Copper is a metal that is widely used in different applications mainly due to its thermal and electrical conductivities, together with its corrosion resistance, particularly when it is alloyed. This chapter intends to be a summary of the copper metallurgy: from the historical aspects and mineral deposits or statistics to the different technologies used to …
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Learning Objectives. By the end of this lab, students should be able to: ... Copper(II)* sulfate and sodium phosphate ... Lead (II) nitrate** and sodium sulfide ** The video says Pb 2 NO 3, but the reaction shown is between lead (II) nitrate and sodium sulfide. Query (PageIndex{5}) 5. Magnesium and hydrochloric acid.
DetailsCopper(I) sulfide | Cu2HS | CID 62755 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities ...
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