1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.7 Block
1.8 Element Family
Transition Metal
Alkaline Earth
1.9 CAS Number
74398857440393
7429905
54386242
1.16 Space Group Name
1.17 Space Group Number
2 Facts
2.1 Interesting Facts
- Iridium element occurs as natural alloys of Platinum and Osmium.
- Iridium element is known as the most corrosion resistance metal .
- Barium oxidizes very easily in the air.
- All toxic compounds of Barium can easily dissolve in water.
- Barium carbonate is used to produce a Rat poison and its other compound Barium nitrate is used in fireworks to produce green color.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Earth's crust, Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Smithson Tennant
Carl Wilhelm Scheele
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2 * 10-7 %1 * 10-6 %
5E-09
0.11
3.4.2 Abundance In Sun
~0.0000002 %~0.000001 %
1E-08
0.1
4.4.4 Abundance In Meteorites
4.4.8 Abundance In Earth's Crust
4.4.13 Abundance In Oceans
6.2.4 Abundance In Humans
7 Uses
7.1 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.
- It is sued in chemical paint manufacturing and glass manufacturing.
-
Compounds of this metal are toxic; but still the barium sulfate is insoluble and given to patients suffering from digestive disorder.
7.1.1 Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry
7.1.2 Medical Uses
7.1.3 Other Uses
7.2 Biological Properties
7.2.1 Toxicity
7.2.2 Present in Human Body
8.1.1 In Blood
NA0.07 Blood/mg dm-3
0
1970
9.3.1 In Bone
10 Physical
10.1 Melting Point
2,410.00 °C725.00 °C
27
3410
10.2 Boiling Point
4,527.00 °C1,140.00 °C
147
5660
10.5 Appearance
10.5.1 Physical State
10.5.2 Color
Silvery White
Silvery Gray
10.5.3 Luster
10.6 Hardness
10.6.1 Mohs Hardness
11.3.4 Brinell Hardness
12.4.3 Vickers Hardness
12.5 Speed of Sound
4,825.00 m/s1,620.00 m/s
818
16200
12.6 Optical Properties
12.6.1 Refractive Index
12.7.2 Reflectivity
12.9 Allotropes
12.9.1 α Allotropes
Not Available
Not Available
12.9.2 β Allotropes
Not Available
Not Available
12.9.3 γ Allotropes
Not Available
Not Available
13 Chemical
13.1 Chemical Formula
13.3 Isotopes
13.3.1 Known Isotopes
13.4 Electronegativity
13.4.1 Pauling Electronegativity
13.5.2 Sanderson Electronegativity
13.5.5 Allred Rochow Electronegativity
13.5.8 Mulliken-Jaffe Electronegativity
13.5.11 Allen Electronegativity
13.6 Electropositivity
13.6.1 Pauling Electropositivity
13.7 Ionization Energies
13.7.1 1st Energy Level
880.00 kJ/mol502.90 kJ/mol
375.7
26130
13.7.4 2nd Energy Level
1,600.00 kJ/mol965.20 kJ/mol
710.2162
28750
13.7.7 3rd Energy Level
NA3,600.00 kJ/mol
1600
34230
13.7.10 4th Energy Level
13.7.13 5th Energy Level
13.7.16 6th Energy Level
13.7.19 7th Energy level
13.7.22 8th Energy Level
13.7.24 9th Energy Level
13.7.27 10th Energy Level
13.7.30 11th Energy Level
13.7.34 12th Energy Level
13.7.37 13th Energy Level
13.7.40 14th Energy Level
13.7.44 15th Energy Level
13.7.48 16th Energy Level
13.7.51 17th Energy Level
13.7.54 18th Energy Level
13.7.58 19th Energy Level
13.7.62 20th Energy Level
13.7.65 21st Energy Level
13.8.1 22nd Energy Level
13.8.3 23rd Energy Level
13.9.1 24th Energy Level
13.10.1 25th Energy Level
14.1.1 26th Energy Level
14.2.1 27th Energy Level
15.1.1 28th Energy Level
15.1.2 29th Energy Level
15.4.2 30th Energy Level
15.5 Electrochemical Equivalent
1.14 g/amp-hr2.56 g/amp-hr
0.16812
8.3209
15.6 Electron Work Function
15.8 Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity, Solubility
16 Atomic
16.1 Atomic Number
16.3 Electron Configuration
[Xe] 4f14 5d7 6s2
[Xe] 6s2
16.4 Crystal Structure
Face Centered Cubic (FCC)
Body Centered Cubic (BCC)
16.4.1 Crystal Lattice
16.5 Atom
16.5.1 Number of Protons
16.6.1 Number of Neutrons
16.6.3 Number of Electrons
16.9 Radius of an Atom
16.9.1 Atomic Radius
136.00 pm222.00 pm
112
265
16.12.1 Covalent Radius
141.00 pm215.00 pm
96
260
16.13.1 Van der Waals Radius
202.00 pm268.00 pm
139
348
16.16 Atomic Weight
192.22 amu137.33 amu
6.94
294
17.2 Atomic Volume
9.53 cm3/mol39.24 cm3/mol
1.39
71.07
18.2 Adjacent Atomic Numbers
18.2.1 Previous Element
18.2.2 Next Element
18.3 Valence Electron Potential
140.00 (-eV)21.30 (-eV)
8
392.42
18.4 Lattice Constant
383.90 pm502.80 pm
228.58
891.25
18.7 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
18.8 Lattice C/A Ratio
19 Mechanical
19.1 Density
19.1.1 Density At Room Temperature
22.56 g/cm33.51 g/cm3
0.534
40.7
19.2.2 Density When Liquid (at m.p.)
19.00 g/cm33.34 g/cm3
0.512
20
19.5 Tensile Strength
19.6 Viscosity
19.8 Vapor Pressure
19.8.1 Vapor Pressure at 1000 K
19.8.4 Vapor Pressure at 2000 K
19.9 Elasticity properties
19.9.1 Shear Modulus
210.00 GPa4.90 GPa
1.3
222
19.10.1 Bulk Modulus
320.00 GPa9.60 GPa
1.6
462
21.1.2 Young's Modulus
528.00 GPa13.00 GPa
1.7
528
21.2 Poisson Ratio
21.4 Other Mechanical Properties
22 Magnetic
22.1 Magnetic Characteristics
22.1.1 Specific Gravity
22.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
22.1.3 Permeability
22.2.4 Susceptibility
22.3 Electrical Properties
22.3.1 Electrical Property
22.3.2 Resistivity
47.10 nΩ·m332.00 nΩ·m
0.18
961
23.1.1 Electrical Conductivity
0.19 106/cm Ω0.03 106/cm Ω
0.00666
0.63
24.2.1 Electron Affinity
151.00 kJ/mol13.95 kJ/mol
0
222.8
25 Thermal
25.1 Specific Heat
0.13 J/(kg K)0.20 J/(kg K)
0.11
3.6
25.4 Molar Heat Capacity
25.10 J/mol·K28.07 J/mol·K
16.443
62.7
25.7 Thermal Conductivity
147.00 W/m·K18.40 W/m·K
6.3
429
25.10 Critical Temperature
25.12 Thermal Expansion
6.40 µm/(m·K)20.60 µm/(m·K)
4.5
97
25.13 Enthalpy
25.13.1 Enthalpy of Vaporization
799.10 kJ/mol140.00 kJ/mol
7.32
799.1
25.13.3 Enthalpy of Fusion
35.23 kJ/mol7.66 kJ/mol
2.1
35.23
25.14.1 Enthalpy of Atomization
837.00 kJ/mol175.70 kJ/mol
61.5
837
25.16 Standard Molar Entropy
35.50 J/mol.K62.50 J/mol.K
9.5
198.1