Rhenium Rhenium Comparison
Periodic Table
Symbol
Re
Re
Group Number
7
11
7
11
Period Number
6
6
Block
d block
d block
Element Family
Transition Metal
Transition Metal
CAS Number
7440155
99+
7440155
99+
Space Group Name
P63/mmc
P63/mmc
Space Group Number
194.00
5
194.00
5
Facts
Interesting Facts
- Chemical properties of Rhenium are similar to Manganese.
- Rhenium metal is created while refining Molybdenum.
- Chemical properties of Rhenium are similar to Manganese.
- Rhenium metal is created while refining Molybdenum.
Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Masataka Ogawa
Masataka Ogawa
Discovery
In 1908
In 1908
Abundance
Abundance In Universe
2 * 10-8 %
29
2 * 10-8 %
29
Abundance In Sun
~0.00000001 %
29
~0.00000001 %
29
Abundance In Meteorites
0.00 %
99+
0.00 %
99+
Abundance In Earth's Crust
0.00 %
99+
0.00 %
99+
Abundance In Oceans
0.00 %
34
0.00 %
34
Uses
Uses & Benefits
- Alloys of Rhenium are used as an electric contact material. It can resist withstand arc corrosion.
- Its catalysts are used in hydrogenation of fine chemicals. Its Alloy with nickel is used to produce turbine blades.
- Alloys of Rhenium are used as an electric contact material. It can resist withstand arc corrosion.
- Its catalysts are used in hydrogenation of fine chemicals. Its Alloy with nickel is used to produce turbine blades.
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
NA
NA
Other Uses
Alloys
Alloys
Biological Properties
Toxicity
Low Toxic
Low Toxic
Present in Human Body
No
No
Physical Properties
Melting Point
3,180.00 °C
2
3,180.00 °C
2
Boiling Point
5,627.00 °C
2
5,627.00 °C
2
Appearance
Physical State
Solid
Solid
Color
Silvery Gray
Silvery Gray
Luster
Metallic
Metallic
Hardness
Mohs Hardness
7.00
3
7.00
3
Brinell Hardness
1,320.00 MPa
8
1,320.00 MPa
8
Vickers Hardness
1,350.00 MPa
7
1,350.00 MPa
7
Speed of Sound
4,700.00 m/s
15
4,700.00 m/s
15
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
Re
Re
Isotopes
Known Isotopes
33
6
33
6
Electronegativity
Pauling Electronegativity
1.90
11
1.90
11
Allred Rochow Electronegativity
1.46
15
1.46
15
Allen Electronegativity
1.60
21
1.60
21
Electropositivity
Pauling Electropositivity
2.10
99+
2.10
99+
Ionization Energies
1st Energy Level
760.00 kJ/mol
20
760.00 kJ/mol
20
2nd Energy Level
1,260.00 kJ/mol
99+
1,260.00 kJ/mol
99+
3rd Energy Level
2,510.00 kJ/mol
99+
2,510.00 kJ/mol
99+
4th Energy Level
3,640.00 kJ/mol
99+
3,640.00 kJ/mol
99+
Electrochemical Equivalent
0.99 g/amp-hr
99+
0.99 g/amp-hr
99+
Electron Work Function
4.96 eV
7
4.96 eV
7
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility
Corrosion, Ionization, Radioactive Isotopes, Solubility
Atomic Properties
Atomic Number
75
99+
75
99+
Electron Configuration
[Xe] 4f14 5d5 6s2
[Xe] 4f14 5d5 6s2
Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
75
40
75
40
Number of Neutrons
111
26
111
26
Number of Electrons
75
40
75
40
Radius of an Atom
Atomic Radius
137.00 pm
40
137.00 pm
40
Covalent Radius
151.00 pm
34
151.00 pm
34
Van der Waals Radius
200.00 pm
28
200.00 pm
28
Atomic Weight
186.21 amu
36
186.21 amu
36
Atomic Volume
8.85 cm3/mol
99+
8.85 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
180.00 (-eV)
3
180.00 (-eV)
3
Lattice Constant
276.10 pm
99+
276.10 pm
99+
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Lattice C/A Ratio
1.62
3
1.62
3
Mechanical Properties
Density
Density At Room Temperature
21.02 g/cm3
12
21.02 g/cm3
12
Density When Liquid (at m.p.)
18.90 g/cm3
4
18.90 g/cm3
4
Tensile Strength
1,070.00 MPa
3
1,070.00 MPa
3
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 2000 K
0.00 (Pa)
29
0.00 (Pa)
29
Elasticity properties
Shear Modulus
178.00 GPa
3
178.00 GPa
3
Bulk Modulus
370.00 GPa
2
370.00 GPa
2
Young's Modulus
463.00 GPa
2
463.00 GPa
2
Poisson Ratio
0.30
14
0.30
14
Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
21.02
5
21.02
5
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Properties
Electrical Property
Conductor
Conductor
Resistivity
193.00 nΩ·m
20
193.00 nΩ·m
20
Electrical Conductivity
0.05 106/cm Ω
33
0.05 106/cm Ω
33
Electron Affinity
14.50 kJ/mol
35
14.50 kJ/mol
35
Thermal Properties
Specific Heat
0.13 J/(kg K)
39
0.13 J/(kg K)
39
Molar Heat Capacity
25.48 J/mol·K
38
25.48 J/mol·K
38
Thermal Conductivity
48.00 W/m·K
31
48.00 W/m·K
31
Critical Temperature
Not Available
Not Available
Thermal Expansion
6.20 µm/(m·K)
99+
6.20 µm/(m·K)
99+
Enthalpy
Enthalpy of Vaporization
707.10 kJ/mol
3
707.10 kJ/mol
3
Enthalpy of Fusion
33.05 kJ/mol
2
33.05 kJ/mol
2
Enthalpy of Atomization
791.00 kJ/mol
2
791.00 kJ/mol
2
Standard Molar Entropy
36.90 J/mol.K
99+
36.90 J/mol.K
99+
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