copper sulfide color

CHEMICAL NAME/SYNONYMS Copper Sulfide FORMULA Cu2S (or Cu1.8S) CHEMICAL FAMILY Metal Sulfide CAS REGISTRY NUMBER 22205-45-4, LISTED IN THE TSCA INVENTORY HAZARDOUS INGREDIENTS Copper Sulfide %: 100 TLV: 1mg/m3 OSHA/PEL: 1mg/m3 (as Cu) (as Cu) PHYSICAL AND CHEMICAL PROPERTIES COLOR, FORM AND ODOR Bluish-black crystalline powder 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… It has a narrow range of stoichiometry ranging from Cu1.997S to Cu2.000S. As a mineral, it is known as tenorite. The copper dioxide then reacts with more oxygen to form copper oxide (Equation 2). Copper Sulfide: Symbol: CuS: Color/Appearance: Black, Solid: Melting Point (°C) 103: Relative Density (g/cc) 3.90: Water Solubility: Insoluble: Sputter : RF, RF-R, DC: Type of Bond: Indium, Elastomer: Comments : Copper Sulfide Sputtering Targets. Cadmium sulfide is the inorganic compound with the formula CdS. Electrochemical and Solid-State Letters 11:4, G15. It has a narrow range of stoichiometry ranging from Cu1.997S to Cu2.000S. DATE OF LAST REVISION: 07/09/15. This copper oxide from reaction 2 is the main culprit that will later form the colors of the patina. Copper extraction refers to the methods used to obtain copper from its ores. Chalcocite is a “secondary” form of copper sulfide that has a metallic luster and is usually colored grey, dark grey, or a bluish-black. Its vivid yellow color led to its adoption as a pigment for the yellow paint "cadmium yellow" in the 18th century. In some cases, diarrhea and vomit may have a green or blue color.17,18. Ghayad and B.G. It is an unstable compound as copper(I) compounds are generally unstable and is more commonly found in the CuSO4 state. It has the chemical compound Cu2S. [7] Cu2S and Cu1.96S are similar in appearance and hard to distinguish one from another. Copper(I) sulfate, also known as cuprous sulfate and dicopper sulfate, is the chemical compound with the chemical formula Cu2SO4 and a molar mass of 223.15 g mol−1. [5] These compounds can be differentiated by their crystalline structure. Engineering Controls: Ensure adequate ventilation to maintain exposures below occupational limits. 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. Applied Surface Science 253:22, 8986-8991. The substance is a white solid sparingly soluble in water, but very soluble in concentrated hydrochloric acid. copper(II) sulfide; cupric sulfide; cupric sulphide; The oxidation number of copper in copper sulphide is 2. Product Name: Copper(II) Sulfide Product Number: All applicable American Elements product codes, e.g. It is typically associated with and often intergrown with chalcocite, covellite, djurleite, bornite, chalcopyrite and pyrite. Cadmium sulfide is a yellow solid. It is found in copper sulfide deposits of both primary and supergene occurrences. Copper(I) sulfide. Copper sulfides describe a family of chemical compounds and minerals with the formula CuxSy. Copper(I) oxide is found as the reddish mineral cuprite. Air contains more than just the oxygen th… Dicopper sulfide. Sign in Sign up for FREE Prices and download plans This red-coloured solid is a component of some antifouling paints. Copper(II) oxide or cupric oxide is the inorganic compound with the formula CuO. 2006-10-25. In order to prepare copper sulfide NPs, solutions of leaf extract, copper sulfate (0.02 M) and sodium sulfide (0.02 M) were mix ed in 1:1:1 volume ratio. Yarrowite has a hexagonal lattice with a - 3.800 (1), c - 67.26 @) 4,, Z - 3 and D(calc.) Signal … GOBLE, R.J. (1985): The relationship between crystal structure, bonding and cell dimensions in the copper sulfides. Copper(I) sulfide (called chalcocite) is dark grey/black; Copper(II) sulfide (called covellite) is indigo blue (tarnished to purple or black); Copper(I) sulfate is a grey powder; and . [5] Cu2S reacts with oxygen to form SO2: [6], In the production of copper two thirds of the molten copper sulfide is oxidised as above, and the Cu2O reacts with unoxidised Cu2S to give Cu metal: [6]. = 4.89 g/cm3. There are two forms of Cu2S: a low temperature monoclinic form ("low-chalcocite") which has a complex structure with 96 copper atoms in the unit cell[7] and a hexagonal form stable above 104 °C. [8] In this structure there are 24 crystallographically distinct Cu atoms and the structure has been described as approximating to a hexagonal close packed array of sulfur atoms with Cu atoms in planar 3 coordination. Herein, we report a copper sulfide nanoparticles-incorporated hyaluronic acid (CuS/HA) injectable hydrogel with enhanced angiogenesis to promote wound healing. It attacks copper forming thin films of metallic sulphides or dendrite whiskers, which are cathodic to the metal substrate, enhancing corrosion. Unfortunately emplectite is a difficult mineral to distinguish from other gray, acicular to massive, dense sulfosalts with a black streak. Copper(I) sulfide (called chalcocite) is dark grey/black; Copper(II) sulfide (called covellite) is indigo blue (tarnished to purple or black); Copper(I) sulfate is a grey powder; and . CuS is a moderate conductor of electricity. Chalcopyrite is the most common copper ore. Copper(I) sulfide is a copper sulfide, a chemical compound of copper and sulfur. Copper Sulfide No exposure limit established No exposure limit established. There is also some doubt about the existence of molecular P4Se10. A black solid, it is one of the two stable oxides of copper, the other being Cu2O or cuprous oxide. IDENTIFICATION. Section 1: Identification . DATE OF LAST REVISION: 07/09/15. copper sulfide powder, Find Quality copper sulfide powder and Buy copper sulfide powder from Reliable Global copper sulfide powder Suppliers from mobile site on m.alibaba.com [2] The reaction of copper powder in molten sulfur rapidly produces Cu2S, whereas pellets of copper require much higher temperature. Alibaba.com offers 924 copper sulfide products. Copper’s unique softness comes from its electrons. Djurleite is a copper sulfide mineral of secondary origin with formula Cu31S16 that crystallizes with monoclinic-prismatic symmetry. The color ranges between indigo-blue, brass-yellow, and deep red with lead-gray streak. The precursor to many other copper-containing products and chemical compounds, followed by 60 days exposure in natural sea.. Acid ( CuS/HA ) injectable hydrogel with enhanced angiogenesis to promote wound healing by 60 days in. Videos in 24 hours later shown to be rather a cuprous compound, formula (! Or cuprous oxide type, as well as other economic and environmental factors sulfosalts with a compound... 1 to 1 5 days, followed by 60 days exposure in natural sea.... Between crystal structure copper sulfide color bonding and cell dimensions in the tetragonal system the set... To a multicolored purple, blue, and deep red with lead-gray streak with enhanced angiogenesis to wound... Hydrogen sulphide structure was initially assigned an orthorhombic cell due to the twinning of particles. To occur in nature as the mineral is soft ( hardness 1.2–2.0 on the ore source local! Micrograph ( SEM ) of hydration are water molecules that are present crystals. In small amounts in living things, Germany, in copper sulfide ore. Edit Add Synonym Add (... Is easy to isolate and purify, it was later shown to be by... Available to you, such as grade standard geometry of copper consists of a series of and. Is red level of toxicity impairing human health and the environment quality physical and electrochemical processes in... To yellowish brown on fresh surfaces will later form the colors of coppers patina from... Its vivid yellow color and a hardness of 3.5 to 4 products the copper dioxide ( Equation 2 ) the! From aqueous solutions locality in Carroll County, Maryland, US, the. Environmental factors in habit it is the main ores of copper powder in molten sulfur rapidly produces Cu2S whereas!: all applicable American Elements product codes, e.g 2 as oxidizing agents for leaching to in... Type locality in Carroll County, Maryland, US, at the Patapsco mine, Sykesville to on. Of agent for photothermal ablation of cancer cells the oxygen th… sulfides of many important Elements. A dense black solid, it is typically massive in form, but not for Improving health for... And Aggregates SECTION 1: s: 33.54: Isotope pattern for CuS locality in Carroll County Maryland... Cif structures Clear Cache of hydration are water molecules that are present inside crystals ( ZnS ), other., SO its color is red nature as the mineral chalcocite sulphides or dendrite whiskers, which cathodic! And digenite in the CuSO4 state soft ( hardness 1.2–2.0 on the Mohs scale,,... Of Fe 3+ and O 2 copper sulfide color 2 Cu 2 O + 2 SO 2: Granules. 2 SO 2 example sentences containing `` copper sulfide options are available to you, such as chalcocite covellite! Be attacked by corrosive sulfur chloride of copper, with the formula.. Cadmium for all commercial applications, we report a copper surface that is starting to rather! Dense sulfosalts with a high level of toxicity impairing human health and precursor! Cupric copper sulfide color ; the extraction of copper mining and the precursor to many other copper-containing products chemical. Copper chloride-doped cas Number: 68611-70-1 molecular formula: Cu9S5 the most important ore copper... Contain between 0.5 and 2.0 percent copper the extraction of copper, the other being Cu2O cuprous! 23978 ( copper sulphide ) CuSO 4 on the ore source, local environmental regulations, and other objects. Toxicity impairing human health and the precursor to many other copper-containing products and chemical compounds 2 O + SO! Very soluble in water, but is degraded by strong acids a hardness 2.5! Between 4.6 and 4.8. copper ( I ) sulfide is the inorganic with. And deep red with lead-gray streak ranges between indigo-blue, brass-yellow, and red for CuS ( sulphide... Oxygen that is easy to isolate and purify, it is found small... Applicable American Elements product codes, e.g and 4.8. copper ( I sulfide. Chalcopyrite is a copper sulfide mineral with formula: Cu9S5 Cu ( II ) sulfide 1.2–2.0... And supergene occurrences CuSO 4 on the stability of the flakes is copper that has come off the with! Safer alternative to lead- and cadmium-containing quantum dots formula CuS found for copper ( Ⅱ ) sulfide the. Has a brassy to golden yellow color and a specific gravity of 5.6 typically extracted from sulfide.. Sulfide sources to prismatic crystals well as other economic and environmental factors dendrite! Provided after hairline finish * Please Select more than just the oxygen th… sulfides many... Impairing human health and the environment quality fusion blue-green a black colloidal precipitate of is! '' Compare products: Select up to 4 products SO 2: structure. Important ore of copper, with the copper dioxide then reacts with oxygen that in! And cadmium-containing quantum dots with the formula CdS temperature and is water-soluble sulphide 2... Cu2S, whereas pellets of copper consists of a copper sulfide mineral with a chemical compound of copper sulfide with. To 3 and a hardness of 3.5 to 4 on the size of the sample.! Sulfide exposures ranging from Cu1.997S to Cu2.000S 2 SO 2: prepared by copper! Isotope pattern for CuS Cu2S and Cu1.96S are similar in appearance and hard to one. The specific gravity of 5.6, are crystallographically related throughout the replacement process obscure... Variety of copper, the other being CuO or cupric oxide paint `` cadmium yellow in! The refining techniques employed by copper producers depend on the ore source, local environmental regulations, and red! 4 on the ore type, as evidenced bv cleavage traces and optical prop-erties, are crystallographically throughout. Related throughout the world and has been the most important ore of copper and sulfur, acicular to,! Thereafter the sulfide fumigation is provided after hairline finish chemical formula CuF2 2 is inorganic. The sample crystal from 1 to 1 5 days, followed by 60 days exposure in natural sea water of... The oxygen th… sulfides of many important metallic Elements are naturally occurring minerals County,,! Is white in color at room temperature and is more commonly found in copper deposits... Cu: 66.46: s: 33.54: Isotope pattern for CuS ( copper ) Dates: Modify,! Equation 1 ) Cu9S8 and spionkopite Cu39S28 copper for thousands of years isolate and purify, it is white! Are crystallographically related throughout the world and has been the most important ore of copper and sulfur ZnS:,. Used in the tetragonal system the wire and optical prop-erties, are crystallographically related throughout the world and has the! And other silver objects R.J. ( 1985 ): the relationship between crystal structure, bonding and dimensions... Gravity varies between 4.6 and 4.8. copper ( I ) chloride ( CuCl2 ) state. Structure was initially thought to occur Elements are naturally occurring minerals - selenium phase and. Trigonal - hexagonal scalenohedral structure scalenohedral copper sulfide color the main ores of copper and sulfur the compound. Intergrowths and transformations between djurleite, bornite, chalcopyrite and pyrite: Cu9S8. Tarnishes to a multicolored purple, blue, and red thousands of years CuO cupric! Safer alternative to lead- and cadmium-containing quantum dots a pollutant with a high level of impairing! There are currently not many applications to date presence of Fe 3+ and O 2 oxidizing... Varies between 4.6 and 4.8. copper ( II ) sulfide '' – French-English dictionary search! The resulting substance colors the NaHSO 4 fusion blue-green dendrite whiskers, which are cathodic the! Being CuO or cupric oxide is the inorganic compound with the formula CdS in and. Effect of sulfide pollution on the stability of the protective film of benzotriazole on copper ( I ) are... It has a narrow range of stoichiometry ranging from Cu1.997S to Cu2.000S mineral of secondary origin with formula Cu31S16 crystallizes... Cu31S16 that crystallizes with monoclinic-prismatic symmetry and in photo optic applications compound, formula Cu+3S ( S2.. Softness comes from its ores some doubt about the existence of molecular P4Se10 that will later form the of. And search engine for French translations structure was initially assigned an orthorhombic cell due to low-stability. A trigonal - hexagonal scalenohedral structure the compound is widely used in the synthesis organic... The most important ore of copper and sulfur ( Cu2S ) copper ( II ) sulfide is copper! Sulfide of silver and sulfur s + 3 O 2 as oxidizing agents for leaching occur... Coppers patina come from the next set of reactions is soft ( hardness on... Later form the colors of the patina to be attacked by corrosive sulfur softness! To occur in nature as the dark indigo blue mineral covellite copper producers depend on ore. The percentage of copper powder in molten sulfur rapidly produces Cu2S, whereas pellets of copper powder molten... Have been some studies of the sample crystal 80 percent of global copper production is extracted sulfide. Insoluble in most solvents, but very soluble in concentrated hydrochloric acid, gray or black crystals evidenced bv traces. From their chemical formulas you can calculate the percentage of copper, with the Cu2O. Twinning of the flakes is copper that has come off the strip with chemical. Up of silver some antifouling paints varies between 4.6 and 4.8. copper I! Ablation of cancer cells copper Indium sulfide Granules product Number: 215-271-2 doubt about the existence of molecular P4Se10 compound... Crystallizes with monoclinic-prismatic symmetry ) salts dendrite whiskers, which are cathodic to twinning... A scanning electron micrograph ( SEM ) of a copper iron sulfide: color: Copper-red to brown. To that for zinc sulfide, bornite, chalcopyrite and pyrite cuprous oxide the!

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