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Mercury vs Indium

Mercury
Indium
Indium vs Mercury


Periodic Table
Symbol
Hg   
In   
Group Number
12   
6
13   
5
Period Number
6   
5   
Block
d block   
p block   
Element Family
Transition Metal   
Post-​Transition   
CAS Number
7439976   
99+
7440746   
17
Space Group Name
R_ 3m   
I4/mmm   
Space Group Number
166.00   
6
139.00   
8
Facts
Interesting Facts
  • At room temperature mercury is found in a liquid state.
  • A coin of pound or rupees floats in mercury.
  • Because of its low melting point and boiling point it is used in thermometers.
  
  • Luster of Indium is bright in nature.
  • Reich and richer were looking for thallium in zinc metal and they discovered Indium metal.
  
Sources
Mining, Ores of Minerals   
Mining, Ores of metals   
History
  
  
Who Discovered
Ancient Chinese and Indians   
Ferdinand Reich and Hieronymous Theodor Richter   
Discovery
Before 2000 BCE   
In 1863   
Abundance
  
  
Abundance In Universe
Not Available   
3 * 10-8 %   
28
Abundance In Sun
~-9999 %   
~0.0000004 %   
23
Abundance In Meteorites
Not Available   
0.00 %   
99+
Abundance In Earth's Crust
0.05 %   
9
0.00 %   
99+
Abundance In Oceans
Not Available   
0.00 %   
99+
Uses
Uses & Benefits
  • It is a liquid metal at room temperature, but it is a toxic heavy metal and hence many uses of mercury are under review or phased out.
  • It is manly used as a catalysts in chemical industry.
  
  • It is used to produce indium tin oxide (ITO), it is used in manufacturing touch screens, flat screen TVs and solar panels.
  • Its nitride, phosphide and antimonide are used in transistors and microchips.
  
Industrial Uses
Electrical Industry, Electronic Industry   
Aerospace Industry, Automobile Industry   
Medical Uses
Dentistry   
Medical Research   
Other Uses
Alloys, Mirror Manufacturing, Pharmaceutical Industry   
Alloys, In Nuclear Reactors   
Biological Properties
  
  
Toxicity
Highly Toxic   
Non Toxic   
Present in Human Body
Yes   
Yes   
In Blood
0.01 Blood/mg dm-3   
23
Not Available   
In Bone
0.45 p.p.m.   
19
Not Available   
Physical Properties
Melting Point
Not Available   
156.61 °C   
99+
Boiling Point
356.58 °C   
99+
2,000.00 °C   
99+
Appearance
  
  
Physical State
Liquid   
Solid   
Color
Silver   
Silvery Gray   
Luster
NA   
Lustrous   
Hardness
  
  
Mohs Hardness
Not Available   
1.20   
20
Brinell Hardness
Not Available   
8.80 MPa   
99+
Speed of Sound
1,451.40 m/s   
99+
1,215.00 m/s   
99+
Optical Properties
  
  
Refractive Index
1.00   
3
Not Available   
Reflectivity
73.00 %   
8
Not Available   
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
Hg   
In   
Isotopes
  
  
Known Isotopes
34   
5
35   
4
Electronegativity
  
  
Pauling Electronegativity
2.00   
7
1.78   
16
Sanderson Electronegativity
2.20   
7
2.14   
8
Allred Rochow Electronegativity
1.44   
17
1.49   
13
Mulliken-Jaffe Electronegativity
1.81   
9
1.76   
10
Allen Electronegativity
1.44   
30
1.66   
18
Electropositivity
  
  
Pauling Electropositivity
2.00   
99+
2.22   
38
Ionization Energies
  
  
1st Energy Level
1,007.10 kJ/mol   
4
558.30 kJ/mol   
99+
2nd Energy Level
1,810.00 kJ/mol   
20
1,820.70 kJ/mol   
18
3rd Energy Level
3,300.00 kJ/mol   
20
2,704.00 kJ/mol   
39
4th Energy Level
Not Available   
5,210.00 kJ/mol   
17
Electrochemical Equivalent
3.74 g/amp-hr   
10
1.43 g/amp-hr   
99+
Electron Work Function
4.49 eV   
15
4.12 eV   
24
Other Chemical Properties
Flammability, Ionization, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Atomic Properties
Atomic Number
80   
36
49   
99+
Electron Configuration
[Xe] 4f14 5d10 6s2   
[Kr] 4d10 5s2 5p1   
Crystal Structure
Rhombohedral (RHO)   
Tetragonal (TETR)   
Crystal Lattice
RHO-Crystal-Structure-of-Mercury.jpg#100   
TETR-Crystal-Structure-of-Indium.jpg#100   
Atom
  
  
Number of Protons
80   
36
49   
99+
Number of Neutrons
121   
22
66   
99+
Number of Electrons
80   
36
49   
99+
Radius of an Atom
  
  
Atomic Radius
151.00 pm   
32
167.00 pm   
24
Covalent Radius
132.00 pm   
99+
142.00 pm   
99+
Van der Waals Radius
155.00 pm   
99+
193.00 pm   
31
Atomic Weight
200.59 amu   
32
114.82 amu   
99+
Atomic Volume
14.82 cm3/mol   
35
15.70 cm3/mol   
33
Adjacent Atomic Numbers
  
  
Previous Element
Gold
  
Cadmium
  
Next Element
Thallium
  
Tin
  
Valence Electron Potential
28.20 (-eV)   
99+
54.00 (-eV)   
25
Lattice Constant
300.50 pm   
99+
325.23 pm   
99+
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
13.53 g/cm3   
24
7.31 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
7.02 g/cm3   
33
Tensile Strength
Not Available   
2.50 MPa   
21
Viscosity
0.00   
1
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.01 (Pa)   
11
Elasticity properties
  
  
Young's Modulus
Not Available   
11.00 GPa   
99+
Poisson Ratio
Not Available   
Not Available   
Other Mechanical Properties
NA   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
13.53   
16
7.31   
99+
Magnetic Ordering
Diamagnetic   
Diamagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
961.00 nΩ·m   
1
83.70 nΩ·m   
34
Electrical Conductivity
0.01 106/cm Ω   
99+
0.12 106/cm Ω   
17
Electron Affinity
0.00 kJ/mol   
40
28.90 kJ/mol   
31
Thermal Properties
Specific Heat
0.14 J/(kg K)   
38
0.23 J/(kg K)   
27
Molar Heat Capacity
27.98 J/mol·K   
13
26.74 J/mol·K   
25
Thermal Conductivity
8.30 W/m·K   
99+
81.80 W/m·K   
21
Critical Temperature
1,750.00 K   
6
Not Available   
Thermal Expansion
60.40 µm/(m·K)   
5
32.10 µm/(m·K)   
9
Enthalpy
  
  
Enthalpy of Vaporization
56.90 kJ/mol   
99+
226.40 kJ/mol   
40
Enthalpy of Fusion
2.29 kJ/mol   
99+
3.28 kJ/mol   
99+
Enthalpy of Atomization
61.50 kJ/mol   
99+
242.70 kJ/mol   
99+
Standard Molar Entropy
75.80 J/mol.K   
6
57.80 J/mol.K   
22
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