Molybdenum

We are specialists in semi-finished steel and metal products, as well as standard parts. We have a wide range of products in our large warehouse located in Europe which is constantly growing and is designed according to high quality standards.

We sell all over Europe, molybdenum and other refractory metals. We ship within 24 hours for whole Europe. Fast and uncomplicated deliveries.

We sell countless flat, round and square steels and precision tools with various dimensions and profiles.

 

Purchase refractory metals such as rhenium, molybdenum, copper, brass, bronze, aluminum, osmium, ruthenium, iridium, rhodium, palladium, tantalum, titanium, platinum, nickel alloys, pure tungsten, niobium, silver and composite metals and gold.

We work together with more than 10,000 clients from the mechanical engineering, tool manufacturing, mold manufacturing, cabinet construction, factory building and metal structures industries.

Molybdenum / Mo 99.95%
Molybdenum is used where high temperatures are generated, such as high temperature heating elements, shields, incandescent filaments, evaporator crucibles, rocket drives, radiation shields, thermal protection tubes, X-ray anodes, welding electrodes , thermodes, slip coatings, glass manufacturing heating components and rods, spray targets and the like. Molybdenum has a high thermal conductivity and versatility. Molybdenum rods are produced by our metallurgical industry.

Description:

Symbol: Mo
Atomic number: 42
Atomic weight: 95.96
Element Category: transition metal
Group, period, block: 6, 5, d
Color: metallic gray / gray-white
Other names: Molybdéne, Molybdenum

Physical properties

Melting point: 2622 ° C, 4751.6 ° F, 2895.15 K
Boiling point: 4639 ° C, 8382.2 ° F, 4912.15 K
Density: 10.28 g · cm3
Bulk Density: 9.33 g · cm3
Density @ 20øC: 10.2 g / cm 3
Solid Density: 10280 kg · m3
Specific Heat: 0.25 (kJ / kg K)
Temperature Superconductivity: 0.915 [-272.235 ° C (-458.02 ° F)] K
Heat of Fusion (kJ · mol-1): 27.6
Heat of Vaporization (kJ · mol-1): 589.9
Heat of Atomization (kJ · mol-1): 656.55
Thermal Conductivity: 138 W · m-1 · K-1
Thermal Expansion: (25 ° C) 4.8 μm · m-1 · K-1
Electrical Resistivity: (20 ° C) 53.4 nΩ · m
Thermal thermal capacity: 24.06 J · mol-1 · K-1
Young's modulus: 329 GPa
Shear modulus: 126 GPa
Bulk module: 230 GPa
Poisson Index: 0.31
Hardness of Mohs: 5.5
Vickers Hardness: 1530 MPa
Brinell hardness: 1500 MPa
Sound Speed: (rt) 5400 m · s-1
Pauling Electronegativity: 2.16
Sanderson electronegativity: 1.15
Allred Rochow Electronegativity: 1.3
Pauling's electropositivity: 1.84
Reflectivity (%): 58

Chemical properties

Electrons: 42
Protons: 42
Neutron: 54
Electronic Configuration: [Kr] 4d5 5s1
Atomic radius: 139 p.m.
Atomic radius, unbound (Å): 2.17
Covalent radius: 154 ± 5 pm
Covalent Ray (Å): 1.46
Ray Van der Waals: 200 pm
Oxidation states: 6, 5, 4, 3, 2, 1, -1, -2 (strongly acid oxide)
Solid state
Crystalline structure: centered cubic body
Magnetic ordering: paramagnetic
Electronic affinity (kJ · mol-1) 72,146
1st Ionization Energy: 684,32 kJ · mol-1
2nd Ionization Energy: 1559,21 kJ · mol-1
3rd Ionization Energy: 2617.67 kJ · mol-1

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