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Such solutions are less toxic than bromoform and methylene iodide, but still have densities that fall between a number of naturally coupled minerals. [ 4 ] Sodium tungstate is a competitive inhibitor of molybdenum ; because tungsten is directly below molybdenum on the periodic table, it has similar electrochemical properties.
Lithium metaborate is a chemical compound of lithium, boron, and oxygen with elemental formula LiBO 2.It is often encountered as a hydrate, LiBO 2 ·nH 2 O, where n is usually 2 or 4.
To prevent this, anhydrous solvents must be used when performing certain reactions. Examples of reactions requiring the use of anhydrous solvents are the Grignard reaction and the Wurtz reaction. Solvents have typically been dried using distillation or by reaction with reactive metals or metal hydrides. These methods can be dangerous and are a ...
The most reactive metals, such as sodium, will react with cold water to produce hydrogen and the metal hydroxide: 2 Na (s) + 2 H 2 O (l) →2 NaOH (aq) + H 2 (g) Metals in the middle of the reactivity series, such as iron , will react with acids such as sulfuric acid (but not water at normal temperatures) to give hydrogen and a metal salt ...
The anhydrous solid is rarely encountered but several hydrates are known. Most important is the perchlorate salt of the aquo complex copper(II) perchlorate hexahydrate, [Cu(H 2 O) 6] 2+. [3] Infrared spectroscopic studies of anhydrous copper(II) perchlorate provided some of the first evidence for the binding of perchlorate anion to a metal ion. [4]
p-Toluenesulfonic acid (PTSA, pTSA, or pTsOH) or tosylic acid (TsOH) is an organic compound with the formula CH 3 C 6 H 4 SO 3 H.It is a white extremely hygroscopic solid that is soluble in water, alcohols, and other polar organic solvents. [6]
The alkali metal naphthalene salts are prepared by stirring the metal with naphthalene in an ethereal solvent, usually as tetrahydrofuran or dimethoxyethane. The resulting salt is dark green. [2] [3] [4] The anion is a radical, giving a strong EPR signal near g = 2.0. Its deep green color arises from absorptions centered at 463 and 735 nm.
Anhydrous nickel(II) acetylacetonate exists as molecules of Ni 3 (acac) 6. The three nickel atoms are approximately collinear and each pair of them is bridged by two μ 2 oxygen atoms. Each nickel atom has tetragonally distorted octahedral geometry , caused by the difference in the length of the Ni–O bonds between the bridging and non ...
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