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Lutetium(III) Hydroxide
Lutetium(III) hydroxide is an inorganic compound with the chemical formula In chemistry, a chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbol ... Lu(OH)3. Production Reacting lutetium chloride and alkalis will first produce Lu(OH)2Cl, then it will become Lu(OH)2.5Cl0.5. Finally, the reaction will produce Lu(OH)3.Aksel'rud, N. V.; Akhrameeva, T. I. Basic chlorides and hydroxide of lutetium. ''Zhurnal Neorganicheskoi Khimii'', 1962. 7. pp 1998-2001. . :LuCl3+2 NaOH→Lu(OH)2Cl+2 NaCl :Lu(OH)2Cl+0.5 NaOH→Lu(OH)2.5Cl0.5+0.5 NaCl :Lu(OH)2.5Cl0.5+0.5 NaOH→Lu(OH)3+0.5 NaCl Chemical properties Lutetium(III) hydroxide can react with acid and form lutetium(III) salts： : Lu(OH)3 + 3 H+ → Lu3+ + 3 H2O While heating lutetium(III) hydroxide, it will produce LuO(OH), continued heating could produce Lu2O3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lutetium Oxide
Lutetium(III) oxide, a white solid, is a cubic compound of lutetium sometimes used in the preparation of specialty glasses. It is also called lutecia. It is a lanthanide oxide, also known as a rare earth.Lutetium Oxide. 1997-2007. Metall Rare Earth Limited. http://www.metall.com.cn/luo.htm History In 1879, Jean Charles Galissard de Marignac (1817–1894), a Swiss chemist, claimed to have discovered ytterbium, but he had found a mixture of elements. In 1907, a French chemist Georges Urbain (1872–1938) reported that ytterbium was a mixture of two new elements and was not a single element. Two other chemists, Carl Auer von Welsbach (1858–1929) and Charles James (1880–1926) also extracted lutetium(III) oxide around the same time. All three scientists successfully separated Marignac's ytterbia into oxides of two elements which were eventually named ytterbium and lutetium Lutetium is a chemical element with the symbol Lu and atomic number 71. It is a silvery white metal, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scandium(III) Hydroxide
Scandium(III) hydroxide is an inorganic compound with the chemical formula Sc(OH)3, the trivalent hydroxide of scandium. It is an amphoteric In chemistry, an amphoteric compound () is a molecule or ion that can react both as an acid and as a base. What exactly this can mean depends on which definitions of acids and bases are being used. One type of amphoteric species are amphiproti ... compound. It is slightly soluble in water, and its saturated solution (pH = 7.85) contains Sc(OH)3 and a small amount of Sc(OH)2+. The solubility of scandium(III) hydroxide in water is 0.0279 mol/L. It will convert to ScO(OH) after aging, greatly reducing the solubility (0.0008 mol/L). Scandium(III) hydroxide can be produced by reacting scandium salts and alkali hydroxides. In the reaction, different starting ingredients can generate different intermediates such as Sc(OH)1.75Cl1.25, Sc(OH)2NO3 and Sc(OH)2.32(SO4)0.34.Mironov, N. N.; Mal'kevich, N. V. Scandium hydroxide formation reacti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yttrium(III) Hydroxide
Yttrium(III) hydroxide is an inorganic compound and an alkali with the chemical formula Y(OH)3. Production Yttrium(III) hydroxide can be produced by reacting yttrium(III) nitrate and sodium hydroxide in aqueous solution:田俐，陈稳纯，陈琳 等. 水热法合成氢氧化钇纳米管. 无机材料学报. 2009. 24(2): 335-339 : Y(NO3)3 + 3 NaOH → Y(OH)3↓ + 3 NaNO3 This gives yttrium(III) hydroxide as a white gelatinous precipitate, which can be dried to a white powder. Chemical properties Yttrium(III) hydroxide is an alkali, so it can react with acid: : Y(OH)3 + 3 HNO3 → Y(NO3)3 + 3 H2O : 2 Y(OH)3 + 3 H2SO4 → Y2(SO4)3 + 3 H2O The compound absorbs atmospheric carbon dioxide Carbon dioxide ( chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is trans .... When heated, yttrium(III) hydroxide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 chemistry''. Inorganic compounds comprise most of the Earth's crust, although the compositions of the deep mantle remain active areas of investigation. Some simple carbon compounds are often considered inorganic. Examples include the allotropes of carbon (graphite, diamond, buckminsterfullerene, etc.), carbon monoxide, carbon dioxide, carbides, and the following salts of inorganic anions: carbonates, cyanides, cyanates, and thiocyanates. Many of these are normal parts of mostly organic systems, including organisms; describing a chemical as inorganic does not necessarily mean that it does not occur within living things. History Friedrich Wöhler's conversion of ammonium cyanate into urea in 1828 is often cited as the starting point of modern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Formula
In chemistry, a chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and ''plus'' (+) and ''minus'' (−) signs. These are limited to a single typographic line of symbols, which may include Subscript and superscript, subscripts and superscripts. A chemical formula is not a chemical nomenclature, chemical name, and it contains no words. Although a chemical formula may imply certain simple chemical structures, it is not the same as a full chemical structural formula. Chemical formulae can fully specify the structure of only the simplest of molecules and chemical substances, and are generally more limited in power than chemical names and structural formulae. The simplest types of chemical formulae are called ''empirical formulae'', which use letters and numbers ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lutetium Chloride
Lutetium(III) chloride or lutetium trichloride is the chemical compound composed of lutetium and chlorine with the formula LuCl3. It forms hygroscopic white monoclinic crystals and also a hydroscopic hexahydrate LuCl3·6H2O. Anhydrous lutetium(III) chloride has the YCl3 (AlCl3) layer structure with octahedral lutetium ions.Wells A.F. (1984) ''Structural Inorganic Chemistry'' 5th edition Oxford Science Publications Reactions Pure lutetium metal can be produced from lutetium(III) chloride by heating it together with elemental calcium Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to ...: :2 LuCl3 + 3 Ca → 2 Lu + 3 CaCl2 See also * Lutetium (177Lu) chloride References Lutetium compounds Chlorides Lanthanide halides {{inorganic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acid
In computer science, ACID ( atomicity, consistency, isolation, durability) is a set of properties of database transactions intended to guarantee data validity despite errors, power failures, and other mishaps. In the context of databases, a sequence of database operations that satisfies the ACID properties (which can be perceived as a single logical operation on the data) is called a ''transaction''. For example, a transfer of funds from one bank account to another, even involving multiple changes such as debiting one account and crediting another, is a single transaction. In 1983, Andreas Reuter and Theo Härder coined the acronym ''ACID'', building on earlier work by Jim Gray who named atomicity, consistency, and durability, but not isolation, when characterizing the transaction concept. These four properties are the major guarantees of the transaction paradigm, which has influenced many aspects of development in database systems. According to Gray and Reuter, the IBM Informa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lutetium Compounds
Lutetium compounds are compounds formed by the lanthanide metal lutetium (Lu). In these compounds, lutetium generally exhibits the +3 oxidation state, such as LuCl3, Lu2O3 and Lu2(SO4)3. Aqueous solutions of most lutetium salts are colorless and form white crystalline solids upon drying, with the common exception of the iodide. The soluble salts, such as nitrate, sulfate and acetate form hydrates upon crystallization. The oxide, hydroxide, fluoride, carbonate, phosphate and oxalate are insoluble in water. Oxides Lutetium(III) oxide is a white solid, a cubic compound of lutetium which sometimes used in the preparation of specialty glasses. It is also called lutecia. It is a lanthanide oxide, also known as a rare earth.Lutetium Oxide. 1997-2007. Metall Rare Earth Limited. http://www.metall.com.cn/luo.htm Lutetium(III) oxide is an important raw material for laser crystals. It also has specialized uses in ceramics, glass, phosphors, and lasers. Lutetium(III) oxide is used as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
