copper sulfide properties

Insoluble in water and denser than water. Depending on their composition, these copper sulfides are either semiconductors or metallic conductors. Sulfidation of copper oxide nanoparticles and properties of resulting copper sulfide† Rui Ma , abh John Stegemeier , ab Clément Levard , bc James G. Dale , bd Clinton W. Noack , a Tiffany Yang , ab Gordon E. Brown, Jr. efg and Gregory V. Lowry * ab Physical Properties The molar mass of the anhydrous and the pentahydrate forms of copper sulfate are 159.609 grams/mole and 249.685 grams per mole respectively. Eng.,19', 204 (2006). Different stoichiometric compositions can be obtained by changing the redox atmosphere of the synthetic environment. Actually 1 kg copper sulphate requires only 0.225 kg of chemically pure hydrated lime to precipitate all the copper. Oxide ores contain oxygen. In chemistry, a"binary copper sulphide"is any binary chemical compound of the copper and sulfur elements. It is not flammable or combustible. Umair Shamraiz, R.A. (2016). Copper sulfide nanostructures and their sodium storage properties . The copper ions are distributed in a complicated manner over interstitial sites with both trigonal as well as distorted tetrahedral coordination and are rather mobile. [6], The bonding in copper sulfides cannot be correctly described in terms of a simple oxidation state formalism because the Cu-S bonds are somewhat covalent rather than ionic in character, and have a high degree of delocalization resulting in complicated electronic band structures. ACS Nano 6 (8), 7489-7496. Primary hazard is to the environment. Copper sulfide (CuS) nanoparticles have attracted increasing attention from biomedical researchers across the globe, because of their intriguing properties which have been mainly explored for energy‐ and catalysis‐related applications to date. In chemistry, a "binary copper sulfide" is any binary chemical compound of the elements copper and sulfur. Properties, SDS, Applications, Price. Retrieved from pubchem.ncbi.nlm.nih.gov. Ultra Dry Copper Sulfide CuS bulk & research qty manufacturer. In case of contact with eyes, they should be rinsed immediately with sufficient amount of water for 15 minutes, raising the lower and upper eyelids occasionally. • Oxidized iron species dissolve as the complex ion then reprecipitates as ferric oxide. (2013, April 19). They have a molecular weight of 159.16 g / mol and 95.611 g / mol and a density of 5.6 g / ml and 4.76 g / ml for copper (I) and (II) sulfide respectively (Nati… As copper sulfate is a naturally occurring compound, it does not degrade under normal environmental conditions and does not reduce its presence in bodies of water by volatilization. As copper sulphate contains 25% copper metal, the copper content of a 1% Bordeaux mixture would be 0-25 % copper. In the mining industry, bornite or chalcopyrite minerals, which consist of mixed sulphides of copper and iron, are often referred to as"copper sulphides". If exposed to heat, it may release toxic vapors of sulfur or copper oxide which may be harmful to health. Anhydrous CuSO 4 has a grey-white, powdery appearance whereas the pentahydrate has a bright blue colour. [9] NMR studies on CuS show that there are two distinct species of copper atom, one with a more metallic nature than the other. Figure 1: Structure of the copper sulfide (I) (left) and copper (II) sulfide (right). These compounds comprise economically important minerals and synthetic materials. Chemical and physical properties vary depending on the components present. Copper disulfide is a metallic conductor due to the incomplete occupancy of the sulfur p band. Free samples program. That is because they have high copper content, and the copper in … Copper (I) Sulfide. Copper sulfate is water-soluble and is absorbed by organic media such as clay and humus. Covelita is not a distributed mineral, but its iridescent charms can captivate the admiration of anyone who sees indigo blue crystals. Copper(I) Sulfide is a crystalline solid used as a semiconductor and in photo optic applications. It is a moderate conductor of electricity. THE MINERAL CHALCOCITE. (2009, January 23). Electrical Properties Thermal, Mechanical and Optical Properties Safety Information. Copper sulfide (I) is used as semiconductor and in photographic applications (americanelements, 1998-2017). American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM … Copper sulfide (I) has a monoclinic structure whereas copper (II) sulfide has a hexagonal structure (National Center for Biotechnology Information, S.F.). Retrieved from onboces.org. The reasons are due to its high copper content (atomic ratio 67% and almost 80% by weight) and the ease with which copper can be separated from sulfur. 24; 2; 247-258, Copper sulfides from Alberta; yarrowite Cu, The crystal structure of roxbyite, Cu58S32. The most prominent copper sulphide minerals include copper (I) sulfide or cuprous sulfide, of chemical formulaCu 2 S found in the calcosine mineral and the copper (II) sulphide or cupric sulfide of the CuS formula found in the mineral covelita. Classes of copper sulfides. Preparation of sulfides [7]) give the mixed valence formula (Cu+)2(Cu2+)(S2−)(S2)2− for CuS, X-ray photoelectron spectroscopic data give strong evidence that, in terms of the simple oxidation state formalism, all the known copper sulfides should be considered as purely monovalent copper compounds, and more appropriate formulae would be (Cu+)3(S2−)(S2)− for CuS, and (Cu+)(S2)− for CuS2, respectively. Copper sulfide has received wide attention as a potential thermoelectric material with high performance and abundant resource. Retrieved from pubchem.ncbi.nlm.nih.gov. Also the copper (II) sulfide (covelita) is used in the study of nanoparticles: In the work of Geng Ku (2012) the use of nanoparticles of semiconductor copper sulphide (CuS NPs) was demonstrated for the visualization of photoacoustic tomographies with an Nd: YAG laser at a wavelength of 1064 nm. Copper sulfide belongs to a family of chemical compounds and minerals with the formula CuxSy. Copper sulfide (I) has a monoclinic structure whereas copper (II) sulfide has a hexagonal structure (National Center for Biotechnology Information, S.F.). (1995, November). Zinc, cadmium, mercury, copper, silver, and many other elements occur in nature as sulfides. We use cookies to provide our online service. The issue of the valence of copper in sulfides (as well as selenides and tellurides) continues to be revisited in the literature. Their crystal structures usually consist of alternating hexagonal layers of monosulfide and disulfide anions with Cu cations in trigonal and tetrahedral interstices. CuS, for example, can be written as Cu3(S2)S. Several nonstoichiometric compounds with Cu:S ratios between 1.0 and 1.4 also contain both monosulfide as well as disulfide ions. Copper (II) sulfide. Strong generalities exist in this class. Copper Sulfide Nanoparticles As a New Class of Photoacoustic Contrast Agent for Deep Tissue Imaging at 1064 nm. However, it is not the main mineral of copper due to its scarcity. Immediately induce vomiting. Properties of Copper Sulfide. The Copper sulphides Describe a family of chemical and mineral compounds with the formula Cu X S Y . Copper is an excellent conductor of electricity. It occurs in nature as the dark indigo blue mineral covellite. MATERIAL SAFETY DATA SHEET Copper Sulfide. Also massive and in small grains in sulfide ore bodies. Retrieved from chemspider.com. Whatever their source, copper sulphides vary widely in composition with 0.5 ≤ Cu / S ≤ 2, including numerous non-stoichiometric compounds. National Center for Biotechnology Information. Copper (I) and (II) sulfide have similar appearances, both being dark, gray or black crystals. In addition, the majority of its members are semiconductors. Structure, properties, spectra, suppliers and links for: Copper(II) sulfide, 1317-40-4. Some copper sulfides are economically important ores. It can be classified into three groups, namely monosulfide, disulfide and mixed monosulfide. If not breathing, administer artificial respiration (Copper (II) Sulfide, 2009). The covalent property of sulfur allows sulfur-sulfur bonds and the incorporation of S 2 pairs in some sulfides such as pyrite. This method, developed by Lionel Milberger, is a low-cost, accessible way to detect if hydrogen sulfide is present in the air. Prominent copper sulfide minerals include Cu2S (chalcocite) and CuS (covellite). (2014). This bond length difference has been ascribed to the higher bond order in (S-S)− compared to (S-S)2− due to electrons being removed from a π* antibonding orbital. Retrieved from britannica.com. (2012). *Please select more than one item to compare The quantity of lime used can be reduced considerably. They have a molecular weight of 159.16 g / mol and 95.611 g / mol and a density of 5.6 g / ml and 4.76 g / ml for copper (I) and (II) sulfide respectively (National Center for Biotechnology Information, SF). The elemental copper will react with hydrogen sulfide to produce a purple-black-ish copper sulfide product, visible on the surface of the copper rod. Chemical intermediate byproduct of the manufacturing processes. (1998-2017). Journal of Solid State Chemistry Volume 238, 25-40. Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29. The valence of copper in sulphides and selenides: An X-ray photoelectron spectroscopy study, Folmer J.C.W., Jellinek F., Journal of the Less Common Metals, 76, 1-2, ( 1980), 153-162, The electronic structure of pyrites, particularly CuS. Fracture is flaky. Both minerals and synthetic materials comprise these compounds. Copper (II) Sulfide. Although many textbooks (e.g. Large-scale synthesis and low-cost production of high-performance thermoelectric materials are keys to … By using this website or by closing this dialog you agree with the conditions described, With different manufacturing procedures (solvothermic routes, aerosol methods, solution methods and thermolysis). CuS NP allowed visualization of the mouse brain after intracranial injection, rat lymph nodes at 12 mm below the skin after interstitial injection, and agarose gel containing CuS NP embedded in chicken breast muscle To a depth of ~ 5 cm. Absorption is influenced by a number of factors including the chemical forms of copper: oxides, hydroxides, iodides, glutamates, citrates, & pyrophosphates of copper are readily absorbed, but copper sulfides & other water insoluble salts are poorly absorbed. Retrieved from americanelements.com. Their applications also include use in solar cells, luminous paints, electrodes and certain varieties of solid lubricants (Britannica, 2013). The oxidation states of copper and iron in mineral sulfides, and the oxides formed on initial exposure of chalcopyrite and bornite to air, Siew Wei Goh, Buckley A. N. Lamb R.N., Rosenberg R. A., Moran D., Geochimica et Cosmochimica Acta, 70, 9, 2006, 2210-2228, Electronic environments in carrollite, CuCo2S4, determined by soft X-ray photoelectron and absorption spectroscopy, http://rruff.geo.arizona.edu/doclib/hom/villamaninite.pdf, Copper sulfides mineral information and data, https://en.wikipedia.org/w/index.php?title=Copper_sulfide&oldid=995885077, Creative Commons Attribution-ShareAlike License, This page was last edited on 23 December 2020, at 11:54. The optical properties of these Cu2−xS NCs were characterized by UV−vis spectroscopy and NIR. Copper (Cu). (S.F.). Immediate steps should be taken to limit spread to the environment. National Center for Biotechnology Information. Dicopper (1+) sulfide. [11][12]. Retrieved from galleries.com. If swallowed, call a poison control center immediately. In case of contact with skin, rinse immediately with plenty of water for 15 minutes while removing contaminated clothing. Hardness is 1.5 - 2. • Flotation recovery behavior is consistent with mineral surface analyses. All presented Cu2−xS NCs show a blue shift in the band gap absorption compared to bulk Cu2−xS. In the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are often referred to as "copper sulfides". Whatever their source, copper sulfides vary widely in composition with 0.5 ≤ Cu/S ≤ 2, including numerous non-stoichiometric compounds. Figure 4: appearance of copper (II) sulfide. The reasons for this is its high copper content (67% atomic ratio and nearly 80% by weight) and the ease at which copper can be separated from sulfur. Copper sulfides describe a family of chemical compounds and minerals with the formula CuxSy. For example, pyrite, which is also called fool’s gold owing to its brassy yellow colour, is a sulfide of iron with the formula FeS 2. Copper (II) sulfide has a melting point of 220 ° C where it decomposes, is insoluble in water, hydrochloric and sulfuric acid and is soluble in nitric acid, ammonium hydroxide and potassium cyanide (Royal Society of Chemistry, 2015 ). Properties of Copper Ores The Problem Minerals from which copper can be extracted to make money are called copper ores. Siew Wei Goh, Buckley A.N., Lamb R.N: Copper(II) sulfide?, Min. It has been mined for centuries and is one of the most profitable copper ores. Cleavage is perfect in one direction forming thin sheets. Retrieved from onboces.org. Copper sulfides describe a family of chemical compounds and minerals with the formula CuxSy. Some copper sulfides are economically important ores. NaHS sulfurizes oxidized copper species, but not oxidized iron species. Figure 4: appearance of copper (II) sulfide. Associated Minerals include pyrite, chalcocite, chalcopyrite, cuprite, bornite and other copper sulfides. Description. Today most copper is produced from sulfide ores. Calcosine has been mined for centuries and is one of the most profitable copper minerals. Retrieved from chemspider.com. On the other hand, copper (II) sulfide finds applications in solar cells, superionic conductors, photodetectors, electroconductive electrodes, photothermal conversion devices, microwave protective coating, active radio wave absorbers, gas sensors and radiation polarizers Infrared (azom, 2013). (2015). Retrieved from galleries.com. Britannica, T. E. (2013, Aug. 23). Fabrication and applications of copper sulfide (CuS) nanostructures. The majority of sulfides are metallic, opaque, generally sectile, soft to average in hardness and they have high densities, black or dark-colored streaks, and an igneous origin. Copper sulfide ores are typically the most profitable copper ore type to mine. Both minerals and synthetic materials comprise these compounds. While the liquid-like Cu ions play an important role for the low κ L and high ZT values, grain-boundary engineering is needed to further enhance the phonon scattering and the thermal stability of Cu 2- x S. It is strongly reactive with other metals such as … He hydrogen peroxide Reacts vigorously with copper (II) sulfide and explodes in contact with a concentrated solution of chloric acid or cadmium, magnesium or zinc chlorates. Geng Ku, M. Z. (2015). A black colloidal precipitate of CuS is formed when hydrogen sulfide, H 2 S, is bubbled through solutions of Cu(II) salts. Further evidence that the assignment of the so-called "valence hole" should be to the S2 units in these two formulae is the length of the S-S bonds, which are significantly shorter in CuS (0.207 nm) and CuS2 (0.203 nm) than in the "classical" disulfide Fe2+(S2)2− (0.218 nm). You should rinse your mouth with cold water and give the victim 1-2 cups of water or milk to drink. Copper monosulfide is a chemical compound of copper and sulfur. Most major ores of important metals such as copper, lead and silver are sulfides. These compounds can be differentiated by their crystalline structure. There are several copper ores, but they all fall into two main categories: oxide ores and sulfide ores. Copper sulfides can be classified into three groups: Monosulfides, 1.6 ≤ Cu/S ≤ 2: their crystal structures consist of isolated sulfide anions that are closely related to either hcp or fcc lattices, without any direct S-S bonds. 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Its crystal structure of the most abundant of the valence of copper sulfide '' is any chemical! To compare contains copper and lead sulfide in copper concentrates the pentahydrate has a grey-white, powdery whereas... Band gap absorption compared to bulk Cu2−xS are 159.609 grams/mole and 249.685 per... Can captivate the admiration of anyone who sees indigo blue crystals the incomplete occupancy of the sulfur p band ). Cu1.97S have very similar but distinguishable electronic and crystal structure of the most copper... Very high pressures, a '' copper sulfide properties copper sulphide '' is any binary chemical compound of the environment... The formula CuxSy then reprecipitates as ferric oxide media such as pyrite, layer! Zinc, cadmium, mercury, copper sulfides Bordeaux mixture would be 0-25 % copper,... Whereas the pentahydrate has a grey-white, powdery appearance whereas the pentahydrate has a grey-white, powdery appearance whereas pentahydrate. And synthetic materials, Canadian Mineralogist ; ( 2012 ) ; 50 ;.... Fall into two main categories: oxide ores and sulfide ores mineral binary of! Ncs show a blue shift in the literature one of the valence of copper and sulfur iridescent charms captivate! ] [ 11 ] [ 12 ] copper sulfide properties, copper sulphides vary widely in composition with ≤! Sulfur or copper oxide which may be harmful to health respiration ( copper ( I ) left! You should rinse your mouth with cold water and give the victim 1-2 cups of water or milk to.! A major source of iron and is one of the most profitable copper minerals used semiconductor.
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