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Iridium vs Titanium

Iridium
Titanium
Titanium vs Iridium


Periodic Table
Symbol
Ir  
Ti  
Group Number
9  
9
4  
14
Period Number
6  
4  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7439885  
99+
7440326  
99+
Space Group Name
Fm_ 3m  
P63/mmc  
Space Group Number
225.00  
3
194.00  
7
Facts
Interesting Facts
  • Iridium element occurs as natural alloys of Platinum and Osmium.
  • Iridium element is known as the most corrosion resistance metal .
  
  • The only metal which burns in Nitrogen is Titanium.
  • Titanium is also known as corrosion resistant metal.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Found in Minerals, Mining  
History
  
  
Who Discovered
Smithson Tennant  
W. Gregor & J. Berzelius  
Discovery
In 1803  
In 1791  
Abundance
  
  
Abundance In Universe
0.00 %  
23
0.00 %  
10
Abundance In Sun
0.00 %  
25
0.00 %  
9
Abundance In Meteorites
0.00 %  
29
0.05 %  
11
Abundance In Earth's Crust
0.00 %  
99+
0.66 %  
7
Abundance In Oceans
-  
0.00 %  
15
Abundance In Humans
0.00 %  
24
0.57 %  
2
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.
  
  • Its alloys are used in spacecraft, aircraft and ammunition industry.
  • Its pipes are used in distillation plants, submarines, hulls of big ships, etc.
  
Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Dentistry, Surgical Instruments Manufacturing  
Other Uses
Alloys  
Alloys, Jewellery, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.05 Blood/mg dm-3  
16
In Bone
0.00 p.p.m.  
99+
0.60 p.p.m.  
21
Physical
Melting Point
2,410.00 °C  
7
1,660.00 °C  
18
Boiling Point
4,527.00 °C  
10
3,287.00 °C  
23
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silvery Gray-White  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.50  
5
6.00  
6
Brinell Hardness
1,670.00 MPa  
5
716.00 MPa  
16
Vickers Hardness
1,760.00 MPa  
8
830.00 MPa  
21
Speed of Sound
4,825.00 m/s  
17
5,090.00 m/s  
13
Optical Properties
  
  
Refractive Index
2.40  
7
2.40  
7
Reflectivity
78.00 %  
8
56.00 %  
26
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ir  
Ti  
Isotopes
  
  
Known Isotopes
34  
5
23  
16
Electronegativity
  
  
Pauling Electronegativity
2.20  
5
1.54  
27
Sanderson Electronegativity
2.20  
8
1.09  
39
Allred Rochow Electronegativity
1.55  
12
1.32  
24
Mulliken-Jaffe Electronegativity
2.20  
6
1.54  
24
Allen Electronegativity
1.68  
20
1.38  
36
Electropositivity
  
  
Pauling Electropositivity
1.80  
99+
2.46  
28
Ionization Energies
  
  
1st Energy Level
880.00 kJ/mol  
9
658.80 kJ/mol  
39
2nd Energy Level
1,600.00 kJ/mol  
36
1,309.80 kJ/mol  
99+
3rd Energy Level
2,256.10 kJ/mol  
99+
2,652.50 kJ/mol  
99+
4th Energy Level
880.00 kJ/mol  
99+
4,174.60 kJ/mol  
99+
5th Energy Level
8,800.00 kJ/mol  
8
9,581.00 kJ/mol  
5
6th Energy Level
8,800.00 kJ/mol  
25
11,533.00 kJ/mol  
8
7th Energy level
8,800.00 kJ/mol  
22
13,590.00 kJ/mol  
6
8th Energy Level
8,800.00 kJ/mol  
22
16,440.00 kJ/mol  
8
9th Energy Level
8,800.00 kJ/mol  
21
18,530.00 kJ/mol  
11
10th Energy Level
8,800.00 kJ/mol  
23
20,833.00 kJ/mol  
15
11th Energy Level
8,800.00 kJ/mol  
20
25,575.00 kJ/mol  
14
12th Energy Level
8,800.00 kJ/mol  
40
28,125.00 kJ/mol  
37
13th Energy Level
8,800.00 kJ/mol  
15
76,015.00 kJ/mol  
1
14th Energy Level
8,800.00 kJ/mol  
14
83,280.00 kJ/mol  
2
15th Energy Level
88,000.00 kJ/mol  
8
90,880.00 kJ/mol  
4
16th Energy Level
88,000.00 kJ/mol  
9
100,700.00 kJ/mol  
4
17th Energy Level
880.00 kJ/mol  
26
109,100.00 kJ/mol  
5
18th Energy Level
8,800.00 kJ/mol  
15
117,800.00 kJ/mol  
6
19th Energy Level
880.00 kJ/mol  
24
129,900.00 kJ/mol  
7
20th Energy Level
880.00 kJ/mol  
14
137,530.00 kJ/mol  
9
21st Energy Level
880.00 kJ/mol  
37
658.80 kJ/mol  
99+
22nd Energy Level
880.00 kJ/mol  
12
658.00 kJ/mol  
31
23rd Energy Level
8,800.00 kJ/mol  
7
658.80 kJ/mol  
99+
24th Energy Level
880.00 kJ/mol  
8
658.80 kJ/mol  
30
25th Energy Level
880.00 kJ/mol  
6
658.80 kJ/mol  
32
26th Energy Level
880.00 kJ/mol  
6
658.80 kJ/mol  
31
27th Energy Level
880.00 kJ/mol  
5
658.80 kJ/mol  
32
28th Energy Level
880.00 kJ/mol  
8
658.80 kJ/mol  
37
29th Energy Level
880.00 kJ/mol  
9
658.80 kJ/mol  
38
30th Energy Level
880.00 kJ/mol  
6
658.80 kJ/mol  
34
Electrochemical Equivalent
1.14 g/amp-hr  
99+
0.45 g/amp-hr  
99+
Electron Work Function
4.55 eV  
18
4.33 eV  
24
Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity  
Chemical Stability, Ionization  
Atomic
Atomic Number
77  
39
22  
99+
Electron Configuration
[Xe] 4f14 5d7 6s2  
[Ar] 3d2 4s2  
Crystal Structure
Face Centered Cubic (FCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
FCC-Crystal-Structure-of-Iridium.jpg#100  
HCP-Crystal-Structure-of-Titanium.jpg#100  
Atom
  
  
Number of Protons
74  
99+
22  
99+
Number of Neutrons
110  
28
26  
99+
Number of Electrons
74  
99+
22  
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm  
99+
147.00 pm  
36
Covalent Radius
141.00 pm  
99+
160.00 pm  
32
Van der Waals Radius
202.00 pm  
34
200.00 pm  
35
Atomic Weight
192.22 amu  
34
47.87 amu  
99+
Atomic Volume
9.53 cm3/mol  
99+
10.64 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Osmium
  
Scandium
  
Next Element
Platinum
  
Vanadium
  
Valence Electron Potential
140.00 (-eV)  
5
95.20 (-eV)  
10
Lattice Constant
383.90 pm  
29
295.08 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.58  
35
1.59  
30
Mechanical
Density
  
  
Density At Room Temperature
22.56 g/cm3  
10
4.51 g/cm3  
99+
Density When Liquid (at m.p.)
19.00 g/cm3  
13
4.11 g/cm3  
99+
Tensile Strength
2,000.00 MPa  
2
434.00 MPa  
10
Viscosity
0.00  
21
0.00  
22
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
26
0.98 (Pa)  
14
Elasticity properties
  
  
Shear Modulus
210.00 GPa  
2
44.00 GPa  
17
Bulk Modulus
320.00 GPa  
3
110.00 GPa  
15
Young's Modulus
528.00 GPa  
1
116.00 GPa  
20
Poisson Ratio
0.26  
22
0.32  
12
Other Mechanical Properties
-  
Ductile  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
21.78  
12
4.51  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
16
0.00 H/m  
17
Susceptibility
0.00  
5
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
Poor Conductor  
Resistivity
47.10 nΩ·m  
99+
420.00 nΩ·m  
12
Electrical Conductivity
0.19 106/cm Ω  
10
0.02 106/cm Ω  
99+
Electron Affinity
151.00 kJ/mol  
4
7.60 kJ/mol  
99+
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.52 J/(kg K)  
9
Molar Heat Capacity
25.10 J/mol·K  
99+
25.06 J/mol·K  
99+
Thermal Conductivity
147.00 W/m·K  
10
21.90 W/m·K  
99+
Critical Temperature
2,719.00 K  
8
1,941.00 K  
21
Thermal Expansion
6.40 µm/(m·K)  
99+
8.60 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
799.10 kJ/mol  
1
429.00 kJ/mol  
20
Enthalpy of Fusion
35.23 kJ/mol  
1
15.48 kJ/mol  
19
Enthalpy of Atomization
837.00 kJ/mol  
1
468.60 kJ/mol  
20
Standard Molar Entropy
35.50 J/mol.K  
99+
27.30 J/mol.K  
99+
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