ChEBI. Cadmium Sulfide is a yellow to orange colored, crystalline, inorganic compound that forms toxic fumes of cadmium oxides when heated. Cadmium sulfide is used as pigment in paints, plastics, textiles, …
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Applications: pigment in the chemical industry; photoresistors; optical-electronic pairs, photodiodes, solar batteries; phosphors.Single crystals of cadmium sulfide are used for the preparation of optical devices operating in the infrared regaion of spectrum. Cadmium sulfide is a direct band gap semiconductor with a band gap band from 2.42 to 2.57 eV.
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Cadmium, a transition metal, has the chemical symbol of Cd. Cadmium is located in the d-block and 12 group of the periodic table possessing an atomic number of 48 and an atomic mass of 112.411g. Cadmium was discovered in Germany in 1817, by a German scientist, Friedrich Strohmeyer. This element was very commonly used as a …
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WebSulfur enhances cadmium bioaccumulation in Cichorium intybus by altering soil properties, heavy metal availability and microbial community in contaminated alkaline …
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Cadmium yellow, or cadmium sulfide (CdS), is synthesized one of two ways: either by a "dry" process, where cadmium metal or cadmium oxide/carbonate is calcined with sulfur at 300–500°C, producing hexagonal cadmium sulfide (h-CdS) or by a "wet" process, where cadmium sulfide is precipitated by reacting cadmium salt with a …
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1. Introduction. Cadmium (Cd) is a heavy metal that has a great impact on the environment and can pose a threat to the health of aquatic animals and humans through biological accumulation [1, 2].It is a dangerous trace element due to its acute toxicity and carcinogenicity, so Cd emissions have long been the focus of attention [[3], [4], …
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Cadmium sulfide. Molecular Formula CdS. Average mass 144.476 Da. Monoisotopic mass 145.875427 Da. ChemSpider ID 7969586. - Charge.
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than half of cadmium consumption in 1960 but declined to 8% by 2000. Cadmium pigments accounted for 20% to 30% of cadmium con-sumption between 1970 and 1990 but declined to 12% in 2000. From 1970 to 2000, cadmium's use in stabilizers decreased from 23% to 4%, and its use in alloys from 8% to 1%. In contrast, cadmium's use in
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Product name : Cadmium sulfide Product Number : 208183 Brand : Aldrich Index-No. : 048-010-00-4 CAS-No. : 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Synthesis of substances 1.3 Details of the supplier of the safety data sheet ...
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Cadmium sulfide is an inorganic compound with the chemical formula CdS. It is a yellow solid and a semiconductor of electricity. It occurs in nature with two different polymorphs, cubic hawleyite, and hexagonal greenockite. However, it is more common as an impurity substituent in the similarly structured ores of zinc, wurtzite, and sphalerite ...
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During the Cold War, the United States devoted great attention to the possibility that an enemy power might attack with biologic weapons. To prepare against such an attack, the U.S. Army sponsored a variety of tests during the 1950s and 1960s to understand how biologic weapons disperse in various environments. As part of the tests, the Army …
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Zinc cadmium sulfide is a mixture of zinc sulfide (ZnS) and cadmium sulfide (CdS). It is used for its fluorescent properties. Zinc is a metallic element with the atomic number 30. It is found in nature most often as …
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How much zinc cadmium sulfide were citizens exposed to? The NRC estimated the maximum potential dose of cadmium, a known carcinogen, by one person during LAC would have been 24.4 micrograms over ...
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Zinc cadmium sulfide itself is a fine powder "that is formed by heating zinc sulfide and cadmium sulfide together under very high temperature so that they fuse…Zinc cadmium sulfide is not a biologic weapon; it was a tracer used by the Army to imitate or simulate the dispersion of biologic weapons." At the time, the compound was not ...
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Cadmium sulfide (CdS), an attractive semiconductor sensitive to visible light, has been extensively studied for H 2 evolution due to its narrow band gap and favorable band structure 5,6,7.
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cadmium to various target sites, and therefore, the concentration at the target site and the severity of the observed effect. The mechanism of action, however, involves the cadmium cation's effect on the target site, and the cation is the same regardless of the anionic species. For inhaled cadmium compounds, the
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Cadmium is a natural element in the earth's crust. It is usually found as a mineral combined with other elements such as oxygen (cadmium oxide), chlorine (cadmium chloride), or sulfur (cadmium sulfate, cadmium sulfide). All soils and rocks, including coal and mineral fertilizers, contain some cadmium. Most cadmium used in the United States is extracted …
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1. Introduction. Cadmium (Cd), alongside arsenic, lead, mercury, and chromium, is a heavy metal that does not have a physiological function and is often considered a toxicant [1,2,3,4,5,6,7].Many different forms of exposure to cadmium have been shown over the past century, with cadmium being present in the environment as a …
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Cadmium sulfide X -215-147-8X X XXKE-04432 U.S. Federal Regulations SARA 313 Component CAS-No Weight % SARA 313 - Threshold Values % Cadmium sulfide 99 0.1 SARA 311/312 Hazard CategoriesSee section 2 for more information CWA (Clean Water Act) Component CWA - Hazardous
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residues (e.g. cadmium-containing dust from electric arc furnaces) or intermediate products. Recycling accounts for approximately 10−15% of the production of cadmium in developed coun-tries (National Resources Canada, 2007). The primary use of cadmium, in the form of cadmium hydroxide, is in electrodes for Ni–Cd batteries.
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8.4.6 Cadmium. Cadmium sulfide, CdS, with a band gap of 2.4 eV, has been known to be a potential H 2 evolution photocatalyst since the early 1980s [163–166]. Unfortunately, CdS requires the use of a sacial electron donor in order to evolve any H 2, and the sulfur can also undergo self-oxidation when irradiated.
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Greenockite (hexagonal) Cadmium sulfide is a direct band gap semiconductor with E g = 2.42 eV at room temperature. CdS is used in optoelectronics (photosensitive and photovoltaic devices). One simple use is as a photoresistor whose electrical resistance changes with incident light levels. Mixed with zinc sulfide, cadmium …
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Cadmium bioavailability and accumulation in rice plants with the addition of sulfur fertilizer. Cadmium is a typical chalcophile …
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Cadmium sits right below zinc on the periodic table and therefore shares many of its same chemical properties. In the environment it is distributed nearly everywhere we find zinc and therefore when we mine zinc, we consequently mine cadmium. When we galvanize (zinc treat) a nail or some other bit of steel, a little cadmium comes along for the ride.
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Cadmium sulfide (CdS) nanoparticles were synthesized by using a simple and low-cost home-made hot-injection method at a low process temperature using …
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Cadmium, chemical element, a metal of Group 12 of the periodic table. Most cadmium produced is electroplated onto steel, iron, copper, brass, and other alloys to protect them for corrosion. Cadmium is physically similar to zinc but is denser and softer.
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Cadmium stress during Sulfur deficiency (−S/+Cd) further decreased the GSSG content to 12 % at 7 DAT and 23 % at 14 DAT. Sulfur-sufficient but Cd-treated …
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Cadmium sulfide nanobelts were synthesized on an Au-capped Si substrate via chemical vapor deposition by annealing CdS powder at 860 °C. Two types of nanobelts were found. While both types grew ...
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Cadmium and cadmium compounds were considered by previous IARC Working Groups in 1972, 1975, 1987, and 1993 (IARC, 1973, 1976, 1987, 1993a). Since that time, new data have become available, these have been incorporated in the Monograph, and taken into consideration in the present evaluation.
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