Ruthenium

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, ruthenium 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.

 

Ruthenium

Ruthenium is notable for being a hard and corrosion resistant metal.

It is a harder metal than platinum and palladium, and like rhodium, can be used to toughen the alloys of these elements. Fine coatings of platinum-ruthenium and palladium-ruthenium alloys are often used to make wear-resistant electrical contacts. In addition, ruthenium is added to titanium to provide corrosion resistance and is also used in high temperature single crystal superalloys, mostly used in aerospace applications.

Description:

Symbol: Ru

Atomic number: 44

Atomic weight: 101.07

Element Category: transition metal

Group, period, block: 8, 5, d

Color: silver metallic white / silver-white

Other names: Rutênio, Ruténio, Rutenio

Physical properties

Melting point: 2334 ° C, 4233 ° F, 2607 K

Boiling point: 4150, 7502, 4423 K

Density: 12.45 g · cm 3 (estimated)

Bulk Density: 10.65 g · cm 3

Density @ 20 ° C: 12.2 g / cm 3

Solid density: 12370 kg · m 3

Specific heat: 0.24 (kJ / kg K)

Temperature Superconductivity: 0.49 [-27.66 ° C (-458.79 ° F)] K

Heat of Melting (kJ · mol -1): 23.7

Heat of Vaporization (kJ · mol -1): 567

Heat of Atomization (kJ · mol -1): 641,031

Thermal conductivity: 117 W · m -1 · K -1

Thermal expansion: (25 ° C) 6.4 μm / (m · K)

Electrical resistivity: (0 ° C) 71 n · m

Molar heat capacity: 24.06 J · mol -1 · K -1

Young's modulus: 447 GPa

Shear modulus: 173 GPa

Bulk module: 220 GPa

Poisson ratio: 0.3

Hardness of Mohs: 6.5

Brinell hardness: 2160 MPa

Sound velocity: (20 ° C) 5970 m · s -1

Pauling's electronegativity: 2.2

Allred Rochow Electronegativity: 1,42

Pauling Electropositivity: 1.8

Chemical properties

Electrons: 44

Protons: 44

Neutron: 57

Electronic configuration: [Kr] 4d 7 5s 1

Atomic radius: 134 pm

Atomic radius, unbound (Å): 2.13

Covalent Ray: 146 ± 19:00

Covalent Ray (Å): 1.36

Oxidation states: 8, 7, 6, 4, 3, 2, 1, -2 (slightly acidic oxide)

Solid state

Crystal structure: Closed hextavado

Magnetic ordering: paramagnetic

Electronic affinity (kJ · mol -1) 101,274

1st ionization energy: 710,19 kJ · mol -1

2nd ionization energy: 1617.11 kJ · mol -1

3rd ionization energy: 2746.96 kJ · mol -1
 

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