Ruthenium vs Ruthenium
Periodic Table
Symbol
Ru
Ru
Group Number
8
10
8
10
Period Number
5
5
Block
d block
d block
Element Family
Transition Metal
Transition Metal
CAS Number
7440188
99+
7440188
99+
Space Group Name
P63/mmc
P63/mmc
Space Group Number
194.00
5
194.00
5
Facts
Interesting Facts
- Ruthenium element has been extracted from used nuclear fuel.
- Ruthenium metal also produces as a by-product of the Nickel mining.
- Ruthenium element has been extracted from used nuclear fuel.
- Ruthenium metal also produces as a by-product of the Nickel mining.
Sources
By-product of Nickel Refining, Found in Minerals, Mining
By-product of Nickel Refining, Found in Minerals, Mining
History
Who Discovered
Karl Ernst Claus
Karl Ernst Claus
Discovery
In 1844
In 1844
Abundance
Abundance In Universe
4 * 10-7 %
20
4 * 10-7 %
20
Abundance In Sun
~0.0000005 %
22
~0.0000005 %
22
Abundance In Meteorites
0.00 %
26
0.00 %
26
Abundance In Earth's Crust
0.00 %
99+
0.00 %
99+
Abundance In Oceans
0.00 %
38
0.00 %
38
Uses
Uses & Benefits
- It is used for producing chip resistors and contact.
- Ruthenium oxide is used to coat the anodes cells for chlorine production in chemical industry. It also works as catalysts for ammonia and acetic acid reaction.
- It is used for producing chip resistors and contact.
- Ruthenium oxide is used to coat the anodes cells for chlorine production in chemical industry. It also works as catalysts for ammonia and acetic acid reaction.
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
Medical Research
Medical Research
Other Uses
Alloys
Alloys
Biological Properties
Toxicity
Low Toxic
Low Toxic
Present in Human Body
No
No
Physical Properties
Melting Point
2,250.00 °C
8
2,250.00 °C
8
Boiling Point
3,900.00 °C
14
3,900.00 °C
14
Appearance
Physical State
Solid
Solid
Color
Silvery White
Silvery White
Luster
Metallic
Metallic
Hardness
Mohs Hardness
6.50
5
6.50
5
Brinell Hardness
2,160.00 MPa
3
2,160.00 MPa
3
Speed of Sound
5,970.00 m/s
4
5,970.00 m/s
4
Optical Properties
Allotropes
No
No
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Chemical Properties
Chemical Formula
Ru
Ru
Isotopes
Known Isotopes
26
13
26
13
Electronegativity
Pauling Electronegativity
2.20
4
2.20
4
Allred Rochow Electronegativity
1.42
18
1.42
18
Allen Electronegativity
1.54
25
1.54
25
Electropositivity
Pauling Electropositivity
1.80
99+
1.80
99+
Ionization Energies
1st Energy Level
710.20 kJ/mol
32
710.20 kJ/mol
32
2nd Energy Level
710.22 kJ/mol
99+
710.22 kJ/mol
99+
3rd Energy Level
2,747.00 kJ/mol
37
2,747.00 kJ/mol
37
Electrochemical Equivalent
1.26 g/amp-hr
99+
1.26 g/amp-hr
99+
Electron Work Function
4.71 eV
9
4.71 eV
9
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Atomic Properties
Atomic Number
44
99+
44
99+
Electron Configuration
[Kr] 4d7 5s1
[Kr] 4d7 5s1
Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
rystal-Structure-of-Ruthenium.jpg#100
rystal-Structure-of-Ruthenium.jpg#100
Atom
Number of Protons
44
99+
44
99+
Number of Neutrons
57
99+
57
99+
Number of Electrons
44
99+
44
99+
Radius of an Atom
Atomic Radius
134.00 pm
99+
134.00 pm
99+
Covalent Radius
146.00 pm
38
146.00 pm
38
Van der Waals Radius
200.00 pm
28
200.00 pm
28
Atomic Weight
101.07 amu
99+
101.07 amu
99+
Atomic Volume
8.30 cm3/mol
99+
8.30 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
64.00 (-eV)
22
64.00 (-eV)
22
Lattice Constant
270.59 pm
99+
270.59 pm
99+
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Lattice C/A Ratio
1.58
11
1.58
11
Mechanical Properties
Density
Density At Room Temperature
12.45 g/cm3
27
12.45 g/cm3
27
Density When Liquid (at m.p.)
10.65 g/cm3
16
10.65 g/cm3
16
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 2000 K
0.00 (Pa)
23
0.00 (Pa)
23
Elasticity properties
Shear Modulus
173.00 GPa
4
173.00 GPa
4
Bulk Modulus
220.00 GPa
7
220.00 GPa
7
Young's Modulus
447.00 GPa
3
447.00 GPa
3
Poisson Ratio
0.30
14
0.30
14
Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
12.45
19
12.45
19
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Properties
Electrical Property
Conductor
Conductor
Resistivity
71.00 nΩ·m
38
71.00 nΩ·m
38
Electrical Conductivity
0.14 106/cm Ω
16
0.14 106/cm Ω
16
Electron Affinity
101.30 kJ/mol
10
101.30 kJ/mol
10
Thermal Properties
Specific Heat
0.24 J/(kg K)
24
0.24 J/(kg K)
24
Molar Heat Capacity
24.06 J/mol·K
99+
24.06 J/mol·K
99+
Thermal Conductivity
117.00 W/m·K
13
117.00 W/m·K
13
Critical Temperature
Not Available
Not Available
Thermal Expansion
6.40 µm/(m·K)
99+
6.40 µm/(m·K)
99+
Enthalpy
Enthalpy of Vaporization
567.80 kJ/mol
10
567.80 kJ/mol
10
Enthalpy of Fusion
25.50 kJ/mol
7
25.50 kJ/mol
7
Enthalpy of Atomization
603.00 kJ/mol
9
603.00 kJ/mol
9
Standard Molar Entropy
28.50 J/mol.K
99+
28.50 J/mol.K
99+
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