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Platinum vs Aluminium

Platinum
Aluminium
Aluminium vs Platinum


Periodic Table
Symbol
Pt   
Al   
Group Number
10   
8
13   
5
Period Number
6   
3   
Block
d block   
p block   
Element Family
Transition Metal   
Post-​Transition   
CAS Number
7440064   
99+
7429905   
99+
Space Group Name
Fm_ 3m   
Fm_ 3m   
Space Group Number
225.00   
2
225.00   
2
Facts
Interesting Facts
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
  • Aluminum’s abundance percentage is more as it is found in more than 260 minerals.
  • Pure Aluminum always reacts with oxygen rapidly.
  • It is a good conductor of heat and electricity and used in transmission lines.
  
Sources
Mining, Ores of metals, Ores of Minerals   
By Electrolysis Process, Earth's crust, Mining   
History
  
  
Who Discovered
Antonio de Ulloa   
Hans Christian Oersted   
Discovery
In 1735   
In 1825   
Abundance
  
  
Abundance In Universe
5 * 10-7 %   
19
5 * 10-3 %   
5
Abundance In Sun
~0.0000009 %   
19
~0.006 %   
5
Abundance In Meteorites
0.00 %   
25
0.91 %   
5
Abundance In Earth's Crust
0.00 %   
99+
8.10 %   
1
Abundance In Oceans
Not Available   
0.00 %   
6
Abundance In Humans
Not Available   
0.00 %   
10
Uses
Uses & Benefits
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  
  • Aluminum is used in a various products; for example, cans, foils, kitchen utensils, window frames, beer kegs and aero plane parts, automobile parts, etc.
  
Industrial Uses
Aerospace Industry, Chemical Industry   
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   
Alloys, Jewellery, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Non Toxic   
Non Toxic   
Present in Human Body
No   
Yes   
In Blood
Not Available   
0.39 Blood/mg dm-3   
9
In Bone
Not Available   
27.00 p.p.m.   
11
Physical Properties
Melting Point
1,772.00 °C   
16
660.37 °C   
99+
Boiling Point
3,827.00 °C   
15
2,467.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
3.50   
11
2.75   
13
Brinell Hardness
300.00 MPa   
34
160.00 MPa   
99+
Vickers Hardness
400.00 MPa   
25
160.00 MPa   
35
Speed of Sound
2,800.00 m/s   
29
5,000.00 m/s   
10
Optical Properties
  
  
Reflectivity
73.00 %   
8
71.00 %   
10
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
Pt   
Al   
Isotopes
  
  
Known Isotopes
35   
4
11   
27
Electronegativity
  
  
Pauling Electronegativity
2.28   
3
1.61   
22
Sanderson Electronegativity
Not Available   
1.71   
13
Allred Rochow Electronegativity
1.44   
17
1.47   
14
Mulliken-Jaffe Electronegativity
Not Available   
1.83   
8
Allen Electronegativity
1.72   
16
1.61   
20
Electropositivity
  
  
Pauling Electropositivity
1.72   
99+
2.39   
32
Ionization Energies
  
  
1st Energy Level
870.00 kJ/mol   
10
577.50 kJ/mol   
99+
2nd Energy Level
1,791.00 kJ/mol   
21
1,816.70 kJ/mol   
19
3rd Energy Level
Not Available   
2,744.80 kJ/mol   
38
4th Energy Level
Not Available   
11,577.00 kJ/mol   
3
5th Energy Level
Not Available   
14,842.00 kJ/mol   
2
6th Energy Level
Not Available   
18,379.00 kJ/mol   
2
7th Energy level
Not Available   
23,326.00 kJ/mol   
2
8th Energy Level
Not Available   
27,465.00 kJ/mol   
2
9th Energy Level
Not Available   
31,853.00 kJ/mol   
2
10th Energy Level
Not Available   
38,473.00 kJ/mol   
4
11th Energy Level
Not Available   
42,647.00 kJ/mol   
5
Electrochemical Equivalent
1.82 g/amp-hr   
35
0.34 g/amp-hr   
99+
Electron Work Function
5.65 eV   
1
4.28 eV   
19
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization   
Chemical Stability, Ionization, Radioactive Isotopes   
Atomic Properties
Atomic Number
78   
38
13   
99+
Electron Configuration
[Xe] 4f14 5d9 6s1   
[Ne] 3s2 3p1   
Crystal Structure
Face Centered Cubic (FCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Platinum.jpg#100   
FCC-Crystal-Structure-of-Aluminium.jpg#100   
Atom
  
  
Number of Protons
78   
38
13   
99+
Number of Neutrons
117   
24
14   
99+
Number of Electrons
78   
38
13   
99+
Radius of an Atom
  
  
Atomic Radius
139.00 pm   
39
143.00 pm   
37
Covalent Radius
136.00 pm   
99+
121.00 pm   
99+
Van der Waals Radius
175.00 pm   
36
184.00 pm   
34
Atomic Weight
47.87 amu   
99+
26.98 amu   
99+
Atomic Volume
9.09 cm3/mol   
99+
10.00 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Iridium
  
Magnesium
  
Next Element
Gold
  
Potassium
  
Valence Electron Potential
392.42 (-eV)   
1
80.70 (-eV)   
17
Lattice Constant
392.42 pm   
24
404.95 pm   
22
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
21.45 g/cm3   
11
2.70 g/cm3   
99+
Density When Liquid (at m.p.)
19.77 g/cm3   
2
2.38 g/cm3   
99+
Tensile Strength
125.00 MPa   
14
40.00 MPa   
19
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
18
Vapor Pressure at 2000 K
0.07 (Pa)   
18
Not Available   
Elasticity properties
  
  
Shear Modulus
61.00 GPa   
14
26.00 GPa   
29
Bulk Modulus
230.00 GPa   
6
76.00 GPa   
18
Young's Modulus
168.00 GPa   
14
70.00 GPa   
28
Poisson Ratio
0.38   
6
0.35   
9
Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
21.45   
4
2.72   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Permeability
0.00 H/m   
3
0.00 H/m   
4
Susceptibility
Not Available   
0.00   
3
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
105.00 nΩ·m   
30
28.20 nΩ·m   
99+
Electrical Conductivity
0.10 106/cm Ω   
21
0.38 106/cm Ω   
4
Electron Affinity
205.30 kJ/mol   
2
42.50 kJ/mol   
26
Thermal Properties
Specific Heat
0.13 J/(kg K)   
39
0.90 J/(kg K)   
5
Molar Heat Capacity
25.86 J/mol·K   
35
24.20 J/mol·K   
99+
Thermal Conductivity
71.60 W/m·K   
24
237.00 W/m·K   
4
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
8.80 µm/(m·K)   
99+
23.10 µm/(m·K)   
17
Enthalpy
  
  
Enthalpy of Vaporization
510.50 kJ/mol   
11
293.70 kJ/mol   
31
Enthalpy of Fusion
19.70 kJ/mol   
12
10.67 kJ/mol   
35
Enthalpy of Atomization
565.00 kJ/mol   
11
322.20 kJ/mol   
31
Standard Molar Entropy
41.60 J/mol.K   
36
28.30 J/mol.K   
99+
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