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Osmium vs Titanium

Osmium
Titanium
Titanium vs Osmium


Periodic Table
Symbol
Os   
Ti   
Group Number
8   
10
4   
14
Period Number
6   
4   
Block
d block   
d block   
Element Family
Transition Metal   
Transition Metal   
CAS Number
7440042   
99+
7440326   
99+
Space Group Name
P63/mmc   
P63/mmc   
Space Group Number
194.00   
5
194.00   
5
Facts
Interesting Facts
  • Osmium metal does not oxidize in air unless it is heated.
  • But if it heated den it forms Osmium Tetroxide, which is highly toxic.
  
  • The only metal which burns in Nitrogen is Titanium.
  • Titanium is also known as corrosion resistant metal.
  
Sources
Found As a By-product, Found in Minerals, Mining   
Found in Minerals, Mining   
History
  
  
Who Discovered
Smithson Tennant   
W. Gregor & J. Berzelius   
Discovery
In 1803   
In 1791   
Abundance
  
  
Abundance In Universe
3 * 10-7 %   
21
3 * 10-4 %   
9
Abundance In Sun
~0.0000002 %   
25
~0.0004 %   
9
Abundance In Meteorites
0.00 %   
28
0.05 %   
11
Abundance In Earth's Crust
0.00 %   
99+
0.66 %   
7
Abundance In Oceans
Not Available   
0.00 %   
15
Uses
Uses & Benefits
  • Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
  • It is also used as industrial catalyst to speed up the chemical reaction.
  
  • 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
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Medical Uses
NA   
Dentistry, Surgical Instruments Manufacturing   
Other Uses
Alloys   
Alloys, Jewellery, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Highly Toxic   
Non Toxic   
Present in Human Body
No   
Yes   
In Blood
Not Available   
0.05 Blood/mg dm-3   
16
Physical Properties
Melting Point
3,045.00 °C   
3
1,660.00 °C   
18
Boiling Point
5,027.00 °C   
6
3,287.00 °C   
22
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Bluish-Gray   
Silvery Gray-White   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
7.00   
3
6.00   
6
Brinell Hardness
3,490.00 MPa   
1
716.00 MPa   
15
Vickers Hardness
Not Available   
830.00 MPa   
14
Speed of Sound
4,940.00 m/s   
11
5,090.00 m/s   
9
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
Os   
Ti   
Isotopes
  
  
Known Isotopes
35   
4
23   
16
Electronegativity
  
  
Pauling Electronegativity
2.20   
4
1.54   
26
Sanderson Electronegativity
Not Available   
1.09   
20
Allred Rochow Electronegativity
1.52   
12
1.32   
23
Allen Electronegativity
1.65   
19
1.38   
32
Electropositivity
  
  
Pauling Electropositivity
1.80   
99+
2.46   
28
Ionization Energies
  
  
1st Energy Level
840.00 kJ/mol   
12
658.80 kJ/mol   
39
2nd Energy Level
1,309.80 kJ/mol   
99+
1,309.80 kJ/mol   
99+
3rd Energy Level
1,600.00 kJ/mol   
99+
2,652.50 kJ/mol   
99+
4th Energy Level
Not Available   
4,174.60 kJ/mol   
32
5th Energy Level
Not Available   
9,581.00 kJ/mol   
5
6th Energy Level
Not Available   
11,533.00 kJ/mol   
6
7th Energy level
Not Available   
13,590.00 kJ/mol   
6
8th Energy Level
Not Available   
16,440.00 kJ/mol   
8
9th Energy Level
Not Available   
18,530.00 kJ/mol   
11
10th Energy Level
Not Available   
20,833.00 kJ/mol   
15
11th Energy Level
Not Available   
25,575.00 kJ/mol   
14
12th Energy Level
Not Available   
28,125.00 kJ/mol   
14
13th Energy Level
Not Available   
76,015.00 kJ/mol   
1
14th Energy Level
Not Available   
83,280.00 kJ/mol   
2
15th Energy Level
Not Available   
90,880.00 kJ/mol   
3
16th Energy Level
Not Available   
100,700.00 kJ/mol   
4
17th Energy Level
Not Available   
109,100.00 kJ/mol   
5
18th Energy Level
Not Available   
117,800.00 kJ/mol   
6
19th Energy Level
Not Available   
129,900.00 kJ/mol   
7
20th Energy Level
Not Available   
137,530.00 kJ/mol   
9
Electrochemical Equivalent
1.77 g/amp-hr   
38
0.45 g/amp-hr   
99+
Electron Work Function
4.83 eV   
8
4.33 eV   
17
Other Chemical Properties
Chemical Stability, Ionization, Solubility   
Chemical Stability, Ionization   
Atomic Properties
Atomic Number
76   
40
22   
99+
Electron Configuration
[Xe] 4f14 5d6 6s2   
[Ar] 3d2 4s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Titanium.jpg#100   
Atom
  
  
Number of Protons
76   
39
22   
99+
Number of Neutrons
114   
25
26   
99+
Number of Electrons
76   
39
22   
99+
Radius of an Atom
  
  
Atomic Radius
133.80 pm   
99+
147.00 pm   
34
Covalent Radius
Not Available   
160.00 pm   
30
Van der Waals Radius
216.00 pm   
24
200.00 pm   
28
Atomic Weight
190.23 amu   
35
47.87 amu   
99+
Atomic Volume
8.49 cm3/mol   
99+
10.64 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Rhenium
  
Scandium
  
Next Element
Iridium
  
Vanadium
  
Valence Electron Potential
91.40 (-eV)   
12
95.20 (-eV)   
10
Lattice Constant
273.44 pm   
99+
295.08 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.58   
14
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
22.59 g/cm3   
9
4.51 g/cm3   
99+
Density When Liquid (at m.p.)
20.00 g/cm3   
1
4.11 g/cm3   
99+
Tensile Strength
1,000.00 MPa   
4
434.00 MPa   
9
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
0.00 (Pa)   
28
0.98 (Pa)   
14
Elasticity properties
  
  
Shear Modulus
222.00 GPa   
1
44.00 GPa   
17
Bulk Modulus
462.00 GPa   
1
110.00 GPa   
15
Young's Modulus
Not Available   
116.00 GPa   
18
Poisson Ratio
0.25   
24
0.32   
12
Other Mechanical Properties
Ductile   
Ductile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
22.57   
2
4.51   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Poor Conductor   
Resistivity
81.20 nΩ·m   
35
420.00 nΩ·m   
12
Electrical Conductivity
0.11 106/cm Ω   
18
0.02 106/cm Ω   
99+
Electron Affinity
106.10 kJ/mol   
9
7.60 kJ/mol   
37
Thermal Properties
Specific Heat
0.13 J/(kg K)   
39
0.52 J/(kg K)   
9
Molar Heat Capacity
24.70 J/mol·K   
99+
25.06 J/mol·K   
99+
Thermal Conductivity
87.60 W/m·K   
19
21.90 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
5.10 µm/(m·K)   
99+
8.60 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
627.60 kJ/mol   
7
429.00 kJ/mol   
15
Enthalpy of Fusion
29.30 kJ/mol   
4
15.48 kJ/mol   
19
Enthalpy of Atomization
669.00 kJ/mol   
6
468.60 kJ/mol   
15
Standard Molar Entropy
32.60 J/mol.K   
99+
27.30 J/mol.K   
99+
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