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Sesquisulfide
Α sesquisufide is a compound that has the composition M2S3 where M is the element and S is sulfur Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula .... * Boron sesquisulfide, B2S3 * Aluminium sesquisulfide, Al2S3 * Scandium sesquisulfide, Sc2S3 * Titanium sesquisulfide, Ti2S3 * Chromium sesquisulfide, Cr2S3 * Gallium sesquisulfide, Ga2S3 * Arsenic sesquisulfide, As2S3 * Yttrium sesquisulfide, Y2S3 * Rhodium sesquisulfide, Rh2S3 * Antimony sesquisulfide, Sb2S3 * Cerium sesquisulfide, Ce2S3 * Praseodymium sesquisulfide, Pr2S3 * Neodymium sesquisulfide, Nd2S3 * Promethium sesquisulfide, Pm2S3 * Samarium sesquisulfide, Sm2S3 * Europium sesquisulfide, Eu2S3 * Gadolinium sesquisulfide, Gd2S3 * Terbium sesquisulfide, Tb2S3 * Dysprosium sesquisulfide, Dy2S3 * Holmium sesqu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samarium Sesquisulfide
Samarium(III) sulfide (Samarium, Sm2Sulfur, S3) is a chemical compound of the rare earth element samarium, and sulfur. In this compound samarium is in the +3 oxidation state, and sulfur is an anion in the −2 state. Production One way to make Samarium(III) sulfide is to heat samarium metal with sulfur. Another way to make a thin film is to alternatively soak in samarium(III) chloride tartaric acid complex, and sodium thiosulfate. Properties The low temperature α form crystallises in the orthorhombic crystal system. The unit cell has dimensions a=7.376, b=3.9622 c=15.352 Å with volume 448.7 Å3. There are four of the formula in each unit cell (Sm8S12). The density comes out to 5.88 kg/liter. There are two kinds of samarium coordination in the solid, one is eight coordinated with sulfur surrounding in a bicapped trigonal pyramid. The other is a sevenfold capped distorted octahedral arrangement. This structure is similar to other light rare-earth element sulfides. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iridium Sesquisulfide
Iridium(III) sulfide is the inorganic compound In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemist ... with the formula Ir2S3. It is an insoluble black solid, prepared by heating a mixture of elemental iridium and sulfur. Crystals can be grown by chemical vapor transport using bromine as the transporting agent. The structure consists of octahedral and tetrahedral Ir and S centers, respectively. No close Ir-Ir contacts are observed. Rh2S3 and Rh2Se3 adopt the same structure. References {{Sulfides Sesquisulfides Iridium compounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanium Sesquisulfide
Titanium(III) sulfide, also called dititanium trisulfide or titanium sesquisulfide, is a chemical compound with the formula Ti2 S3. Preparation Titanium(III) sulfide is obtained from titanium disulfide, TiS2, by heating at 1000 °C in a vacuum or by reduction with hydrogen at high temperatures. It can also be synthesized by direct combination of the elements under pressure or at 800 °C. Properties Titanium(III) sulfide is a black powder that can also be crystalline or shiny. The crystal has the nickel arsenide structure (hexagonal close-packed), with a coordination number of 6 for titanium. Titanium(III) sulfide is air- and water-stable at normal temperatures and unlike titanium disulfide does not give off an odor of hydrogen sulfide. In hot sulfuric acid, Ti2S3 first forms a blue-gray slurry and then a colorless solution, while in cold concentrated sulfuric or nitric acid it forms a green-colored solution. With hot hydrochloric acid it forms hydrogen sulfide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromium Sesquisulfide
Chromium(III) sulfide is the inorganic compound In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemist ... with the formula Cr2 S3. It is a brown-black solid. Chromium sulfides are usually nonstoichiometric compounds, with formulas ranging from CrS to Cr0.67S (corresponding to Cr2S3). Preparation Chromium(III) sulfide can be prepared through the reaction of a stoichiometric mixture of the elements at 1000 °CGeorg Brauer: Handbuch der präparativen anorganischen Chemie. 3., umgearb. Auflage. Band III. Enke, Stuttgart 1981, , S. 1493 :\mathrm It is a solid that is insoluble in water. According to X-ray crystallography, its structure is a combination of that of nickel arsenide (1:1 stoichiometry) and Cd(OH)2 (1:2 stoichiometry). Some metal-metal bonding is indicated by the short ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodium Sesquisulfide
Rhodium(III) sulfide is the inorganic compound In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemist ... with the formula Rh2S3. It is an insoluble black solid, prepared by the heating a mixture of elemental rhodium and sulfur. Crystals can be grown by chemical vapor transport using bromine as the transporting agent. The structure consists of octahedral and tetrahedral Rh and S centers, respectively. No close Rh-Rh contacts are observed. Rh2Se3 and Ir2S3 adopt the same structure as Rh2S3. References {{Sulfides Sesquisulfides Rhodium(III) compounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holmium Sesquisulfide
Holmium(III) sulfide is the sulfide of holmium, with the chemical formula of . Like other rare earth sulfides, it is used as a high-performance inorganic pigment. Preparation Holmium(III) sulfide can be obtained by the reaction of holmium(III) oxide and hydrogen sulfide at 1325 °C. : Properties Holmium(III) sulfide has orange-yellow crystals in the monoclinic crystal system, with the space group ''P''21/''m'' (No. 11). Under high pressure, holmium(III) sulfide can form in the cubic and orthorhombic In crystallography, the orthorhombic crystal system is one of the 7 crystal systems. Orthorhombic lattices result from stretching a cubic lattice along two of its orthogonal pairs by two different factors, resulting in a rectangular prism with a r ... crystal systems. References {{inorganic-compound-stub Holmium compounds Sesquisulfides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praseodymium Sesquisulfide
Praseodymium(III) sulfide is an inorganic chemical compound with chemical formula Pr2 S3. Preparation Praseodymium(III) sulfide can be obtained by reacting praseodymium(III) oxide and hydrogen sulfide Hydrogen sulfide is a chemical compound with the formula . It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. The unde ... at 1320 °C: :Pr2O3 + 3H2S → Pr2S3 + 3H2O It could also be obtained by directly reacting sulfur with metallic praseodymium: :2Pr + 3S → Pr2S3 References Sesquisulfides Praseodymium(III) compounds {{inorganic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neodymium Sesquisulfide
Neodymium(III) sulfide is a inorganic chemical compound with the formula Nd2S3 composed of a two neodymium atoms in the +3 oxidation state and three sulfur atoms in the +2 oxidation state. Like other rare earth sulfides, neodymium(III) sulfide is used as a high-performance inorganic pigment. Preparation Neodymium(III) sulfide can directly be produced by reacting neodymium with sulfur: : 2Nd + 3S → Nd2S3 It can also be produced by sulfidizing neodymium oxide with H2S at 1450 °C: : Nd2O3 + 3 H2S → Nd2S3 + 3 H2O Properties Neodymium(III) sulfide is (as γ-form) a light green solid. The compound comes in three forms. The α-form has an orthorhombic crystal structure, the β form has a tetragonal crystal structure, and the γ form has a cubic crystal structure. At 1650 °C in a vacuum, the γ compound decomposes to form neodymium monosulfide. Neodymium(III) sulfide has a high melting point and a lot of polymorphic forms which make it difficult to grow. When hea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfur
Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Elemental sulfur is a bright yellow, crystalline solid at room temperature. Sulfur is the tenth most abundant element by mass in the universe and the fifth most on Earth. Though sometimes found in pure, native form, sulfur on Earth usually occurs as sulfide and sulfate minerals. Being abundant in native form, sulfur was known in ancient times, being mentioned for its uses in ancient India, ancient Greece, China, and ancient Egypt. Historically and in literature sulfur is also called brimstone, which means "burning stone". Today, almost all elemental sulfur is produced as a byproduct of removing sulfur-containing contaminants from natural gas and petroleum.. Downloahere The greatest commercial use of the element is the production o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terbium Sesquisulfide
Terbium is a chemical element with the symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable, and ductile. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. Terbium is never found in nature as a free element, but it is contained in many minerals, including cerite, gadolinite, monazite, xenotime and euxenite. Swedish chemist Carl Gustaf Mosander discovered terbium as a chemical element in 1843. He detected it as an impurity in yttrium oxide, . Yttrium and terbium, as well as erbium and ytterbium, are named after the village of Ytterby in Sweden. Terbium was not isolated in pure form until the advent of ion exchange techniques. Terbium is used to dope calcium fluoride, calcium tungstate and strontium molybdate in solid-state devices, and as a crystal stabilizer of fuel cells that operate at elevated temperatures. As a component of Terfenol-D (a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Sesquisulfide
Gold(III) sulfide or auric sulfide is an inorganic compound with the formula .Auric sulfide has been described as a black and amorphous. Little evidence has been published supporting the existence of macroscopic quantities of this material. Claims Early investigations claimed to prepare auric sulfide by the reaction of lithium tetrachloroaurate with hydrogen sulfide: : Similar preparations via chloroauric acid, auric chloride, or gold(III) sulfate a claimed proceed in anhydrous solvents, but water evinces a redox decomposition into metallic gold in sulfuric acid: : Conversely, ''cyclo''-octasulfur reduces gold(III) sulfate to a mixture of gold sulfides and sulfur oxides: : Auric sulfide has also been claimed as the product when auric acetate is sonicated with ''cyclo''-octasulfur in decalin. Auric sulfide is claimed to react with nitric acid as well sodium cyanide. It is claimed to dissolve in concentrated sodium sulfide Sodium sulfide is a chemical compound with th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lutetium Sesquisulfide
Lutetium is a chemical element with the symbol Lu and atomic number 71. It is a silvery white metal, which resists corrosion in dry air, but not in moist air. Lutetium is the last element in the lanthanide series, and it is traditionally counted among the rare earth elements. Lutetium is generally considered the first element of the 6th-period transition metals by those who study the matter, although there has been some dispute on this point. Lutetium was independently discovered in 1907 by French scientist Georges Urbain, Austrian mineralogist Baron Carl Auer von Welsbach, and American chemist Charles James. All of these researchers found lutetium as an impurity in the mineral ytterbia, which was previously thought to consist entirely of ytterbium. The dispute on the priority of the discovery occurred shortly after, with Urbain and Welsbach accusing each other of publishing results influenced by the published research of the other; the naming honor went to Urbain, as he had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
