Iridium Iron Comparison
Periodic Table
Symbol
Ir
Fe
Group Number
9
9
8
10
Period Number
6
4
Block
d block
d block
Element Family
Transition Metal
Transition Metal
CAS Number
7439885
99+
7439896
99+
Space Group Name
Fm_ 3m
Im_ 3m
Space Group Number
225.00
2
229.00
1
Facts
Interesting Facts
- Iridium element occurs as natural alloys of Platinum and Osmium.
- Iridium element is known as the most corrosion resistance metal .
- Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
- The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.
Sources
Found in Minerals, Mining, Ores of Minerals
Earth's crust, Found in Minerals
History
Who Discovered
Smithson Tennant
Unknown
Discovery
In 1803
Before 5000 BC
Abundance
Abundance In Universe
2 * 10-7 %
22
1.1 * 10-1 %
1
Abundance In Sun
~0.0000002 %
25
~0.1 %
1
Abundance In Meteorites
0.00 %
29
22.00 %
1
Abundance In Earth's Crust
0.00 %
99+
6.30 %
2
Abundance In Oceans
Not Available
0.00 %
12
Abundance In Humans
Not Available
0.01 %
5
Uses
Uses & Benefits
- Iridium has an anti corrosion properties and it is used in special alloy with Osmium metal and that alloy is used in pen tips and compass bearings.
- Iron metal alloy steel is used in the application of civil engineering and manufacturing.
- Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.
Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
NA
Pharmaceutical Industry, Surgical Instruments Manufacturing
Other Uses
Alloys
Alloys, Sculptures, Statues
Biological Properties
Toxicity
Toxic
Non Toxic
Present in Human Body
Yes
Yes
In Blood
Not Available
447.00 Blood/mg dm-3
3
In Bone
Not Available
380.00 p.p.m.
5
Physical Properties
Melting Point
2,410.00 °C
7
1,535.00 °C
25
Boiling Point
4,527.00 °C
10
2,750.00 °C
37
Appearance
Physical State
Solid
Solid
Color
Silvery White
Gray
Luster
Metallic
Metallic
Hardness
Mohs Hardness
6.50
5
4.00
10
Brinell Hardness
1,670.00 MPa
5
200.00 MPa
40
Vickers Hardness
1,760.00 MPa
3
608.00 MPa
18
Speed of Sound
4,825.00 m/s
13
5,120.00 m/s
8
Optical Properties
Reflectivity
78.00 %
6
65.00 %
12
Allotropes
No
Yes
α Allotropes
Not Available
Ferrite (alpha Iron)
β Allotropes
Not Available
beta Iron
γ Allotropes
Not Available
gamma Iron
Chemical Properties
Chemical Formula
Ir
Fe
Isotopes
Known Isotopes
34
5
26
13
Electronegativity
Pauling Electronegativity
2.20
4
1.83
14
Sanderson Electronegativity
Not Available
2.20
7
Allred Rochow Electronegativity
1.55
11
1.64
8
Allen Electronegativity
1.68
17
1.80
12
Electropositivity
Pauling Electropositivity
1.80
99+
2.17
40
Ionization Energies
1st Energy Level
880.00 kJ/mol
9
762.50 kJ/mol
17
2nd Energy Level
1,600.00 kJ/mol
35
1,561.90 kJ/mol
36
3rd Energy Level
Not Available
2,957.00 kJ/mol
29
4th Energy Level
Not Available
5,290.00 kJ/mol
16
5th Energy Level
Not Available
7,240.00 kJ/mol
16
6th Energy Level
Not Available
9,560.00 kJ/mol
14
7th Energy level
Not Available
12,060.00 kJ/mol
15
8th Energy Level
Not Available
14,580.00 kJ/mol
14
9th Energy Level
Not Available
22,540.00 kJ/mol
5
10th Energy Level
Not Available
25,290.00 kJ/mol
8
11th Energy Level
Not Available
28,000.00 kJ/mol
9
12th Energy Level
Not Available
31,920.00 kJ/mol
9
13th Energy Level
Not Available
34,830.00 kJ/mol
9
14th Energy Level
Not Available
37,840.00 kJ/mol
11
15th Energy Level
Not Available
44,100.00 kJ/mol
11
16th Energy Level
Not Available
47,206.00 kJ/mol
13
17th Energy Level
Not Available
122,200.00 kJ/mol
1
18th Energy Level
Not Available
131,000.00 kJ/mol
2
19th Energy Level
Not Available
140,500.00 kJ/mol
3
20th Energy Level
Not Available
152,600.00 kJ/mol
5
21st Energy Level
Not Available
163,000.00 kJ/mol
5
22nd Energy Level
Not Available
173,600.00 kJ/mol
4
23rd Energy Level
Not Available
188,100.00 kJ/mol
4
24th Energy Level
Not Available
195,200.00 kJ/mol
1
Electrochemical Equivalent
1.14 g/amp-hr
99+
0.69 g/amp-hr
99+
Electron Work Function
4.55 eV
13
4.70 eV
10
Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity
Corrosion, Ionization, Solubility
Atomic Properties
Atomic Number
77
39
26
99+
Electron Configuration
[Xe] 4f14 5d7 6s2
[Ar] 3d6 4s2
Crystal Structure
Face Centered Cubic (FCC)
Body Centered Cubic (BCC)
Crystal Lattice
FCC-Crystal-Structure-of-Iridium.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
74
99+
26
99+
Number of Neutrons
110
27
30
99+
Number of Electrons
74
99+
26
99+
Radius of an Atom
Atomic Radius
136.00 pm
99+
126.00 pm
99+
Covalent Radius
141.00 pm
99+
132.00 pm
99+
Van der Waals Radius
202.00 pm
27
200.00 pm
28
Atomic Weight
192.22 amu
34
55.85 amu
99+
Atomic Volume
9.53 cm3/mol
99+
7.10 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
140.00 (-eV)
5
67.00 (-eV)
20
Lattice Constant
383.90 pm
26
286.65 pm
99+
Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
Mechanical Properties
Density
Density At Room Temperature
22.56 g/cm3
10
7.87 g/cm3
99+
Density When Liquid (at m.p.)
19.00 g/cm3
3
6.98 g/cm3
35
Tensile Strength
2,000.00 MPa
2
11,000.00 MPa
1
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 1000 K
Not Available
0.00 (Pa)
28
Vapor Pressure at 2000 K
0.00 (Pa)
25
36.80 (Pa)
5
Elasticity properties
Shear Modulus
210.00 GPa
2
82.00 GPa
11
Bulk Modulus
320.00 GPa
3
170.00 GPa
10
Young's Modulus
528.00 GPa
1
211.00 GPa
9
Poisson Ratio
0.26
22
0.29
15
Other Mechanical Properties
NA
Ductile, Malleable, Weldable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
21.78
3
7.20
99+
Magnetic Ordering
Paramagnetic
Ferromagnetic
Permeability
Not Available
6.3 * 10-3 H/m
1
Susceptibility
Not Available
2,00,000.00
1
Electrical Properties
Electrical Property
Conductor
Conductor
Resistivity
47.10 nΩ·m
99+
96.10 nΩ·m
32
Electrical Conductivity
0.19 106/cm Ω
10
0.10 106/cm Ω
20
Electron Affinity
151.00 kJ/mol
4
15.70 kJ/mol
34
Thermal Properties
Specific Heat
0.13 J/(kg K)
39
0.44 J/(kg K)
13
Molar Heat Capacity
25.10 J/mol·K
99+
25.10 J/mol·K
99+
Thermal Conductivity
147.00 W/m·K
10
80.40 W/m·K
22
Critical Temperature
Not Available
Not Available
Thermal Expansion
6.40 µm/(m·K)
99+
11.80 µm/(m·K)
33
Enthalpy
Enthalpy of Vaporization
799.10 kJ/mol
1
351.00 kJ/mol
23
Enthalpy of Fusion
35.23 kJ/mol
1
14.90 kJ/mol
22
Enthalpy of Atomization
837.00 kJ/mol
1
414.20 kJ/mol
19
Standard Molar Entropy
35.50 J/mol.K
99+
27.30 J/mol.K
99+
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