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Molybdenum VI oxide

Moissanite, see Silicon carbide Molybdenite, see Molybdenum disulfide Molybdite, see Molybdenum(VI) oxide Molysite, see Iron(III) chloride Montroydite, see Mercury(II) oxide Morenosite, see Nickel sulfate 7-water Mosaic gold, see Tin disulfide Muriatic acid, see Hydrogen chloride, aqueous solutions... [Pg.274]

Dimerization and condensation of pentane-2,4-dione by molybdenum(VI) oxide tetrachloride (MoOC14) affords l,3,5,7-tetramethyl-2,4,6,8-tetraoxa-adamantane, the structure of which is determined by elemental analysis, IR, mass, and PMR spectroscopy.188... [Pg.110]

Sulphides. MoS2 was prepared by electrolysis at 1000°C of a melt consisting of sodium tetraborate, sodium fluoride, sodium carbonate in which molybdenum (VI) oxide and sulphur were dissolved. The electrolysis was carried out at 1000°C with the melt contained in a graphite crucible also acting as anode. After electrolysis, the excess electrolyte was dissolved in water to obtain crystalline MoS2, containing however up to 2% carbon. A similar method was used for WS2 carbon was the principal impurity in the sulphides. [Pg.592]

Manganese trichloride oxide, 4141 Mercury(I) oxide , 4613 Mercury(II) oxide, 4605 Molybdenum(IV) oxide, 4716 Molybdenum(VI) oxide, 4717 Nickel(II) oxide, 4821 Nickel(III) oxide, 4823 Nickel(IV) oxide, 4822 Niobium(V) oxide, 4818 Osmium(IV) oxide, 4833 Osmium(VIII) oxide, 4858 Palladium(II) oxide, 4825 Palladium(III) oxide, 4848 Palladium(IV) oxide, 4835... [Pg.247]

Sakakura A, Umemura S, Ishihara K (2008) Convergent Total Syntheses of Fluvibactin and Vibriobactin Using Molybdenum(vi) Oxide-catalyzed Dehydrative Cyclization as a Key Step. Chem Commun 3561... [Pg.70]

Magnesium nitrate, Tin(ll) fluoride, 4693 Manganese(lV) oxide, Calcium hydride, 4705 Molybdenum(VI) oxide, Graphite, 4717 Nitric acid, Formaldehyde, 4436 Nitric acid, Formic acid, 4436 Nitric acid, Formic acid. Urea, 4436 Nitric acid, Metal thiocyanate, 4436 Oxalic acid, Urea, 0725 Ozone, Acetylene, 4846... [Pg.351]

Molybdenum(VI) oxide is used in catalyst compositions to carry out desulfurization of petroleum feedstocks and to remove nitrogen-containing compounds from petroleum fractions. Other uses of this oxide include preparation of various molybdate salts and as reagents for chemical analyses. [Pg.593]

Molybdenum(VI) oxide is obtained by igniting molybdenum or its compounds in air ... [Pg.593]

Purified molybdenum (VI) oxide also is made by prolonged heating of ammonium molybdate in air ... [Pg.593]

An alternative method involves repeatedly evaporating a mixture of ammonium molybdate and nitric acid. Ammonium nitrate so formed is separated from the product molybdenum(VI) oxide by extraction with water ... [Pg.593]

Molybdenum(VI) oxide is the most stable oxide of molybdenum. It reacts with alkali solutions, forming molybdates ... [Pg.594]

Molybdenum(VI) oxide combines with several metal oxides forming their orthomolyhdates. Such products are obtained as hydrated salts upon neutralization of slurries of M0O3 and the metal oxides with alkalies ... [Pg.594]

Preparation of Molybdenum(VI) Oxide, a. Preparation of Molybdenum(VI) Oxide by the Thermal Decomposition of Ammonium Molybdate. Put a boat with 0.5 g of ammonium molybdate into a porcelain tube in an electric furnace. Connect one end of the... [Pg.227]

Cyclooctadiene) (pyridine) (tri-cyclohexylphosphine)iridium(I) hexa-fluorophosphate, 88 Palladium catalysts, 230 Potassium-Graphite, 252 Sodium borohydride-Molybdenum(VI) oxide, 279... [Pg.371]

Mercury(II) chloride, 175, 182 Mercury(II) trifluoroacetate, 175 Molybdenum Compounds Molybdenum carbonyl, 194 Molybdenum(VI) oxide, 279 Oxodiperoxymolybdenum(pyridine)-(hexamethylphosphoric triamide),... [Pg.410]

Amine salts have been used to recover molybdenum from solutions arising from a variety of sources. Most of the western world s supply of this metal is derived from molybdenite (MoS2) concentrates obtained as a byproduct of copper production in the USA and Chile. Such concentrates are roasted to molybdenum(VI) oxide (volatile Re207 can often be recovered as a valuable byproduct from the roaster gases) and leached with dilute sulfuric acid to remove the copper from the crude M0O3 product. Some molybdenum also dissolves and can be recovered, for example, by the same technique as that practised at Kennecott s Utah Copper Division smelter,213 i.e. by extraction into a solution of a tertiary amine in kerosene at an aqueous pH value of about 1. [Pg.806]

The technical-grade molybdenum(VI) oxide obtained as described previously can be further purified by solvent extraction as an alternative to the conventional sublimation method,216-217 the molybdenum being brought into solution by leaching of the oxide with sodium hydroxide ... [Pg.806]

Calcination of the ammonium paramolybdate yields molybdenum(VI) oxide of high purity 208... [Pg.806]

Chemical analyses of the oxygen content of these crystals, carried out by (1) careful oxidation to molybdenum(VI) oxide in a stream of oxygen and (2) carbon reduction of the metal, yielded the following data. Anal. Calcd. for Mo02 O, 25.01. Found, 25.1. Mo 0 ratio, 1 2.01. Calc, for W02 O, 14.83. Found, 14.9. W 0 ratio, 1 2.01. [Pg.152]

See other pages where Molybdenum VI oxide is mentioned: [Pg.643]    [Pg.302]    [Pg.333]    [Pg.1772]    [Pg.227]    [Pg.370]    [Pg.592]    [Pg.592]    [Pg.593]    [Pg.594]    [Pg.1117]    [Pg.228]    [Pg.92]    [Pg.279]    [Pg.279]    [Pg.407]    [Pg.1854]    [Pg.2114]    [Pg.2566]    [Pg.1772]   
See also in sourсe #XX -- [ Pg.663 ]



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Oxides molybdenum oxide

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