7439-98-7

Usage

Uses

Used in Steel Production:
Molybdenum is used as an alloying agent in steel production for enhancing the metal's strength, hardness, and resistance to corrosion. Its addition to steel improves the alloy's overall performance in various applications, such as in the construction, automotive, and aerospace industries.
Used in Electrical Contacts:
Molybdenum is utilized as an electrical contact material due to its excellent electrical conductivity, high melting point, and resistance to arc erosion. It is commonly used in high-voltage applications, such as in switchgear and circuit breakers, to ensure reliable and efficient electrical connections.
Used in Lubricants:
Molybdenum disulfide, a compound of molybdenum, is employed as a lubricant in various industrial applications. Its unique layered structure allows for low friction and high load-bearing capacity, making it an ideal additive for greases and other lubricating products.
Used in Catalysts for the Petroleum Industry:
Molybdenum compounds, such as molybdenum oxide, serve as catalysts in the petroleum industry. They are used in processes like hydrodesulfurization, where they help remove sulfur from crude oil, and in the production of chemicals like ethylene and propylene.
Used in Agricultural Fertilizers:
Molybdenum is an essential nutrient for plants, playing a crucial role in nitrogen fixation and other metabolic processes. It is used in agricultural fertilizers to promote plant growth and enhance crop yields.
Used in the Production of Ceramics and Pigments:
Molybdenum compounds, such as molybdenum oxide, are used in the production of ceramics and pigments. They impart unique properties, such as high refractive index and color stability, making them valuable in the ceramics and glass industries.

InChI:InChI=1/Mo

Upstream product

• 13478-18-7 molybdenum(III) chloride 
• 103933-26-2 tris(propionitrile)tricarbonylmolybdenum⁽⁰⁾ 
• 7440-09-7 potassium 
• 7439-95-4 magnesium 
• 7440-02-0 nickel 
• 7429-90-5 aluminium 
• 10241-05-1 molybdenum(V) chloride 
• 7440-43-9 cadmium 
• 1333-74-0 hydrogen 
• 201230-82-2 carbon monoxide 
• 10241-05-1 molybdenum(V) chloride 

Downstream Products

• 305-84-0 Carnosine 
• 80937-33-3 oxygen 
• 7429-90-5 aluminium 
• 7681-65-4 copper(l) iodide 
• 13446-57-6 molybdenum(III) bromide 
• 7789-61-9 antimony(III) bromide 
• 7787-37-3 barium molybdate 
• 7440-39-3 barium 
• 7439-95-4 magnesium 
• 13767-03-8 magnesium monomolybdate(VI) 
• 7439-92-1 lead 
• 7704-34-9 sulfur 
• 14459-59-7 molybdenum oxotetrafluoride 
• 13824-57-2 molybdenum dioxodifluoride 

Relevant academic research and scientific papers

Use of ionic liquids (ILs) for the IL-anion size-dependent formation of Cr, Mo and W nanoparticles from metal carbonyl M(CO)6 precursors

Stable chromium, molybdenum and tungsten nanoparticles are obtained reproducibly by thermal or photolytic decomposition under argon from mononuclear metal carbonyl precursors M(CO)6 (M = Cr, Mo, W) suspended in the ionic liquids BMim+BF4-, BMim +OTf- and BtMA+Tf2N- (BMim+ = n-butyl-methyl-imidazolium, BtMA+ = n-butyl-trimethyl-ammonium, Tf2N = N(O2SCF 3)2, OTf = O3SCF3) with a very small and uniform size of 1 to 1.5 nm in BMim+BF4- which increases with the molecular volume of the ionic liquid anion to ～100 nm in BtMA+Tf2N- [characterization by transmission electron microscopy (TEM), dynamic light scattering and transmission electron diffraction (TED) analysis]. The Royal Society of Chemistry.

MOLYBDENUM METAL BY THE ALUMINOTHERMIC REDUCTION OF CALCIUM MOLYBDATE.

A process is discussed for extracting molybdenum metal in well consolidated form and in good yield from calcium molybdate by open aluminothermic reduction. Post reduction processing by electron beam melting and by molten salt electrorefining for the removal of aluminum is also described. The final metal is said to compare very favorably with commercial molybdenum obtainable by other routes.

Phase and structural transformations in the Ni65Mo 20Cr15 alloy at changing the temperature of heat treatment

The ternary Ni65Mo20Cr15 alloy was studied using TEM after heat treatment at different temperatures. It has been shown that the tendency to phase separation which exists in the Ni/Mo diffusion couple at high temperatures leads to precipitation of crystalline particles of Mo atoms in the liquid solution. At lowering the heat treatment temperature to 1200 C, a phase transition ordering - phase separation occurs in the Ni/Mo diffusion couple, which results in dissolution of the particles of Mo atoms. At 650 C, there takes place precipitation of Ni2Mo phase particles, which can initiate intercrystalline embrittlement of Hastelloy-type alloys.

Structure of Mo7S8: A new binary sulfide synthesized by self molybdenum intercalation

A new Mo7S8 binary sulfide structure and its crystal growth are reported. It is the first example of Mo atoms in the channels of the Chevrel phases. The single crystal structure determination indicates extra molybdenum atoms located in the chalcogen site that is centered at the rhombohedral unit-cell origin. The nature and valence state of these extra atoms are discussed through chemical and physical properties. 1998 Elsevier Science Ltd.

A novel growth mode of Mo on Au(111) from a Mo(CO)6 precursor: An STM study

The growth of a submonolayer of metallic Mo prepared by chemical vapor deposition (CVD) of Mo(CO)6 on Au(111) was studied by scanning tunneling microscopy (STM). At low coverage, nanoscale Mo clusters grow at the elbow sites and in the fcc regions of the reconstructed Au surface. When the coverage increases, rather than decorating uniformly all elbows as found in physical vapor deposition (PVD), the Mo clusters aggregate but do not coalesce, forming ramified cluster islands. Within the islands, the clusters preferentially aggregate along the fcc troughs and the domain boundaries. At step edges, Mo clusters are found to grow at both upper and lower step edges. Differences between CVD and PVD are attributed to differences in the mobility of the nascent Mo species leading to growth. We hypothesize that the difference in mobility for the CVD process is due to the presence of CO from the precursor molecules. Oxidation of the Mo islands leads to their spreading, proving that the Mo clusters are either three-dimensional above or embedded in the surface of the gold substrate.

Electrode reactions on synthetic diamond and cubic boron nitride in ionic melts

The behavior and corrosion resistance of synthetic diamond and cubic boron nitride in chloride, chloride-oxide, and oxide salt melts at 750-900°C were studied by potentiometric and voltammetric methods.

Visible Laser-Induced Nucleation and Growth of Cr, Mo, and W Films from the Hexacarbonyls. Reactivity of CO on Film Surfaces

Continuous visible laser irradiation is used to deposit Cr, Mo, and W films from the hexacarbonyls by thermal excitation.Detailed analyses of the films by scanning Auger microscopy show that the Mo and Cr films are spatially inhomogeneous, having clean metal centers surrounded by contaminated metal rings.W films are completely pure.Depth profiles reveal that, prior to formation of clean Mo and Cr, an interfacial layer of contaminated material is deposited which becomes progressively metal rich as thickness increases.If such a layer is formed for W, it is very thin.The measured composition profiles are compared to calculated surface temperature distributions in order to extract information on the kinetics of CO dissociation and desorption during growth.The temperature and mechanism simulations show that CO desorption dominates above about 450 K, ensuring that pure metal is deposited.Below that temperature contamination occurs.Previous investigations of film growth from metal hexacarbonyls have led to the conclusion that film purity will only be high at temperatures exceeding 800 K, where recombinative desorption of CO is fast.The origins of the large discrepancy in temperatures are discussed.Chemical processes leading to growth of metal oxycarbide material at the film edges and film-substrate interface are explored using data from the catalysis literature.The strong parallels found between the laser-deposited material and supported catalysts formed from the hexacarbonyls suggest that the oxycarbide films may have significant Lewis acid-base character, leading to faster CO and metal-CO bond dissociation rates.Thus, formation of contaminated material appears to depend on local surface composition as well as temperature.

The cluster size dependence of thermal stabilities of both molybdenum and tungsten nanoclusters

We measured, for the first time, the oxidation enthalpies of both molybdenum (Mo) and tungsten (W) nanoclusters at several cluster sizes. We observed that the oxidation enthalpies of both Mo and W nanoclusters went down to the corresponding bulk values, r

Mechanistic understanding, gamma phase formation and morphological behaviour of the Reduction?Diffusion processed U-Mo alloy

Reduction?Diffusion (R-D) process has been attempted to synthesize U-Mo alloy powder for the first time, and the mechanism of alloy formation has been investigated. Calciothermic reduction of uranium dioxide in the presence of the alloying element Mo, followed by high temperature soaking; subsequent leaching to remove the calcia slag yields U-Mo alloy in powder form. Experiments were carried out to synthesize U-10 wt%Mo alloy powder. The alloy powder products were characterized by Scanning Electron Microscopy and X-ray Diffraction. Complete stabilization of the metastable isotropic gamma phase has been achieved in U-10 wt%Mo powder synthesized by R-D process, where the final soaking was carried out at 1300 °C and 4 h. Attempts were made to understand the mechanism of formation of U-Mo alloy by R-D process on two fronts, i.e. alloying within a single particle, and particle-to-particle homogenization. The intended application of the alloy powders is in high uranium density dispersion fuels for high flux nuclear research and test reactors.

Carbothermic reduction of copper, nickel, and cobalt oxides and molybdates

The carbothermic reduction of NiO, CoO, CuO, MoO3, and the MMoO4 (M = Ni, Co, Cu) molybdates has been studied by thermogravimetry. The results demonstrate that the reactivity of the molybdates with solid carbon, the sequence of reduc