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Molybdenum trioxide describes a family of inorganic compounds with the formula MoO 3 (H 2 O) n where n = 0, 1, 2. The anhydrous compound is produced on the largest scale of any molybdenum compound since it is the main intermediate produced when molybdenum ores are purified. The anhydrous oxide is a precursor to molybdenum metal, an important ...
Molybdenum(VI) oxide is soluble in strong alkaline water, forming molybdates (MoO 4 2−). Molybdates are weaker oxidants than chromates. They tend to form structurally complex oxyanions by condensation at lower pH values, such as [Mo 7 O 24] 6− and [Mo 8 O 26] 4−. Polymolybdates can incorporate other ions, forming polyoxometalates. [27]
The Mortreux system consists of molybdenum hexacarbonyl resorcinol catalyst system. The phenyl and p-methylphenyl substituents on the alkyne group are scrambled. Metal-catalyzed alkyne metathesis was first described in 1968 by Bailey, et al. The Bailey system utilized a mixture of tungsten and silicon oxides at temperatures as high as 450 °C.
The oxide ion has an ionic radius of 1.40 Å, molybdenum(VI) is much smaller, 0.59 Å. [1] There are strong similarities between the structures of the molybdates and the molybdenum oxides, (MoO 3, MoO 2 and the "crystallographic shear" oxides, Mo 9 O 26 and Mo 10 O 29) whose structures all contain close packed oxide ions. [9]
a blue pigment containing molybdenum (VI) oxide. The "heteropoly-molybdenum blues", are used extensively in analytical chemistry and as catalysts. The formation of "isopoly-molybdenum blues" which are intense blue has been used as a sensitive test for reducing reagents. They have recently been shown to contain very large anionic species based ...
Molybdenum dioxide is a constituent of "technical molybdenum trioxide" produced during the industrial processing of MoS 2: [4][5] MoO 2 has been reported as catalysing the dehydrogenation of alcohols, [6] the reformation of hydrocarbons [7] and biodiesel. [8] Molybdenum nano-wires have been produced by reducing MoO 2 deposited on graphite. [9]
Hydrodeoxygenation (HDO) is a hydrogenolysis process for removing oxygen from oxygen-containing compounds. Typical HDO catalysts commonly are sulfided nickel - molybdenum or cobalt -molybdenum on gamma alumina. An idealized reaction is: [ 1 ] The first review on HDO was published in 1983. [ 2 ] HDO is of interest in producing biofuels, which ...
Molybdenum oxide may refer to: Molybdenum(IV) oxide (molybdenum dioxide, MoO 2) Molybdenum(VI) oxide (molybdenum trioxide, MoO 3) Other stoichiometric binary ...