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Platinum Palladium Comparison

Platinum
Palladium
Palladium Platinum comparison


Periodic Table
Symbol
Pt  
Pd  
Group Number
10  
8
10  
8
Period Number
6  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440064  
99+
7440053  
99+
Space Group Name
Fm_ 3m  
Fm_ 3m  
Space Group Number
225.00  
3
225.00  
3
Facts
Interesting Facts
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
  • Palladium alloys are used for Jewelry contains (95% Palladium and 5% Ruthenium)
  • In the late 1800s, Palladium metal used have more economical value than the Platinum metal.
  • Palladium element is known as a good catalyst
  
Sources
Mining, Ores of metals, Ores of Minerals  
Ores of metals  
History
  
  
Who Discovered
Antonio de Ulloa  
William Hyde Wollaston  
Discovery
In 1735  
In 1803  
Abundance
  
  
Abundance In Universe
0.00 %  
20
0.00 %  
23
Abundance In Sun
0.00 %  
19
0.00 %  
24
Abundance In Meteorites
0.00 %  
25
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
0.00 %  
24
0.00 %  
24
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.
  
  • Mostly palladium metal is used in catalytic converters. In electronic industry it is used in ceramic capacitors of mobile and computer.
  • It is used in jewellery and dental fillings and crowns.
  
Industrial Uses
Aerospace Industry, Chemical Industry  
Aerospace Industry, Automobile 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  
Coinage, Bullion, Jewellery  
Biological Properties
  
  
Toxicity
Non Toxic  
Toxic  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
37
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
1,772.00 °C  
16
1,554.90 °C  
22
Boiling Point
3,827.00 °C  
15
2,963.00 °C  
34
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silver  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
3.50  
12
4.75  
9
Brinell Hardness
300.00 MPa  
99+
320.00 MPa  
40
Vickers Hardness
400.00 MPa  
99+
121.00 MPa  
99+
Speed of Sound
2,800.00 m/s  
99+
3,070.00 m/s  
38
Optical Properties
  
  
Refractive Index
2.41  
6
1.72  
25
Reflectivity
73.00 %  
10
84.00 %  
5
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Pt  
Pd  
Isotopes
  
  
Known Isotopes
35  
4
38  
1
Electronegativity
  
  
Pauling Electronegativity
2.28  
4
2.20  
5
Sanderson Electronegativity
2.28  
5
2.20  
8
Allred Rochow Electronegativity
1.44  
18
1.35  
22
Mulliken-Jaffe Electronegativity
2.20  
6
2.20  
6
Allen Electronegativity
1.72  
19
1.59  
25
Electropositivity
  
  
Pauling Electropositivity
1.72  
99+
1.80  
99+
Ionization Energies
  
  
1st Energy Level
870.00 kJ/mol  
10
520.23 kJ/mol  
99+
2nd Energy Level
1,791.00 kJ/mol  
22
7,298.22 kJ/mol  
2
3rd Energy Level
2,277.00 kJ/mol  
99+
11,815.13 kJ/mol  
3
4th Energy Level
8,702.00 kJ/mol  
6
870.00 kJ/mol  
99+
5th Energy Level
8,702.00 kJ/mol  
9
8,044.00 kJ/mol  
13
6th Energy Level
8,700.00 kJ/mol  
27
8,044.00 kJ/mol  
33
7th Energy level
8,700.00 kJ/mol  
23
8,040.00 kJ/mol  
27
8th Energy Level
8,700.00 kJ/mol  
23
8,040.00 kJ/mol  
27
9th Energy Level
5,660.00 kJ/mol  
99+
8,040.00 kJ/mol  
24
10th Energy Level
8,700.00 kJ/mol  
24
8,040.00 kJ/mol  
28
11th Energy Level
8,700.00 kJ/mol  
21
8,040.00 kJ/mol  
27
12th Energy Level
8,700.00 kJ/mol  
99+
8,040.00 kJ/mol  
99+
13th Energy Level
8,700.00 kJ/mol  
16
5,310.00 kJ/mol  
99+
14th Energy Level
870.00 kJ/mol  
99+
804.40 kJ/mol  
99+
15th Energy Level
87,000.00 kJ/mol  
9
80,400.00 kJ/mol  
16
16th Energy Level
870.00 kJ/mol  
99+
804.40 kJ/mol  
99+
17th Energy Level
870.00 kJ/mol  
27
804.40 kJ/mol  
33
18th Energy Level
8,700.00 kJ/mol  
16
8,045.00 kJ/mol  
22
19th Energy Level
870.00 kJ/mol  
25
804.40 kJ/mol  
30
20th Energy Level
870.00 kJ/mol  
15
804.00 kJ/mol  
23
21st Energy Level
870.00 kJ/mol  
38
804.40 kJ/mol  
99+
22nd Energy Level
870.00 kJ/mol  
13
804.00 kJ/mol  
18
23rd Energy Level
870.10 kJ/mol  
39
804.40 kJ/mol  
99+
24th Energy Level
870.00 kJ/mol  
9
804.40 kJ/mol  
14
25th Energy Level
870.00 kJ/mol  
7
804.40 kJ/mol  
12
26th Energy Level
870.00 kJ/mol  
7
804.40 kJ/mol  
12
27th Energy Level
870.10 kJ/mol  
6
804.40 kJ/mol  
11
28th Energy Level
870.10 kJ/mol  
9
804.40 kJ/mol  
17
29th Energy Level
870.00 kJ/mol  
10
804.40 kJ/mol  
16
30th Energy Level
870.00 kJ/mol  
7
804.00 kJ/mol  
12
Electrochemical Equivalent
1.82 g/amp-hr  
39
1.99 g/amp-hr  
34
Electron Work Function
5.65 eV  
4
5.12 eV  
7
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization  
Chemical Stability, Corrosion, Ionization, Solubility  
Atomic
Atomic Number
78  
38
46  
99+
Electron Configuration
[Xe] 4f14 5d9 6s1  
[Kr] 4d10  
Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Platinum.jpg#100  
FCC-Crystal-Structure-of-Palladium.jpg#100  
Atom
  
  
Number of Protons
78  
38
46  
99+
Number of Neutrons
117  
25
60  
99+
Number of Electrons
78  
38
46  
99+
Radius of an Atom
  
  
Atomic Radius
139.00 pm  
99+
137.00 pm  
99+
Covalent Radius
136.00 pm  
99+
139.00 pm  
99+
Van der Waals Radius
175.00 pm  
99+
163.00 pm  
99+
Atomic Weight
47.87 amu  
99+
106.42 amu  
99+
Atomic Volume
9.09 cm3/mol  
99+
8.90 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Iridium
  
Rhodium
  
Next Element
Gold
  
Silver
  
Valence Electron Potential
392.42 (-eV)  
1
33.00 (-eV)  
99+
Lattice Constant
392.42 pm  
27
389.07 pm  
28
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.56  
99+
1.56  
99+
Mechanical
Density
  
  
Density At Room Temperature
21.45 g/cm3  
11
12.02 g/cm3  
31
Density When Liquid (at m.p.)
19.77 g/cm3  
12
10.38 g/cm3  
38
Tensile Strength
125.00 MPa  
26
550.00 MPa  
8
Viscosity
0.00  
16
0.00  
14
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
16
0.00 (Pa)  
29
Vapor Pressure at 2000 K
0.07 (Pa)  
18
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
61.00 GPa  
14
44.00 GPa  
17
Bulk Modulus
230.00 GPa  
6
180.00 GPa  
9
Young's Modulus
168.00 GPa  
15
121.00 GPa  
18
Poisson Ratio
0.38  
6
0.39  
5
Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
21.45  
13
12.02  
33
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
14
0.00 H/m  
18
Susceptibility
0.00  
20
0.00  
27
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
105.00 nΩ·m  
30
105.40 nΩ·m  
29
Electrical Conductivity
0.10 106/cm Ω  
26
0.10 106/cm Ω  
27
Electron Affinity
205.30 kJ/mol  
2
54.23 kJ/mol  
21
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.24 J/(kg K)  
23
Molar Heat Capacity
25.86 J/mol·K  
99+
25.98 J/mol·K  
99+
Thermal Conductivity
71.60 W/m·K  
24
71.80 W/m·K  
23
Critical Temperature
2,041.00 K  
19
1,825.00 K  
26
Thermal Expansion
8.80 µm/(m·K)  
99+
11.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
510.50 kJ/mol  
15
376.60 kJ/mol  
28
Enthalpy of Fusion
19.70 kJ/mol  
12
16.74 kJ/mol  
18
Enthalpy of Atomization
565.00 kJ/mol  
15
393.30 kJ/mol  
29
Standard Molar Entropy
41.60 J/mol.K  
99+
37.60 J/mol.K  
99+
Summary >>
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