Iridium

Zinc

Iridium Zinc Comparison

Iridium

Zinc

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1 Periodic Table

1.1 Symbol

1.2 Group Number

912

0 17

1.3 Period Number

2 7

1.3 Block

d block

1.4 Element Family

Transition Metal

1.5 CAS Number

74398857440666

7429905 54386242

1.7 Space Group Name

Fm_ 3m

P63/mmc

1.8 Space Group Number

225.00194.00

11 229

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 .

Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
The leading producers of Zinc metal are Australia, Canada, China, U.S.A and Peru.

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

Indian metallurgists

2.3.2 Discovery

In 1803

Before 1000 BCE

2.4 Abundance

2.4.1 Abundance In Universe

2 * 10^-7 %3 * 10^-5 %

5E-09 0.11

2.6.1 Abundance In Sun

~0.0000002 %~0.0002 %

1E-08 0.1

3.4.2 Abundance In Meteorites

0.00 %0.02 %

1.7E-07 22

3.4.3 Abundance In Earth's Crust

0.00 %0.01 %

9.9E-12 8.1

3.4.6 Abundance In Oceans

NA0.00 %

2E-23 1.1

3.4.7 Abundance In Humans

NA0.00 %

1E-13 1.4

4 Uses

4.1 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 mainly used for Galvanizing other metals.
It is also used for manufacturing die-casting and it is very essential for automobile industry.

4.1.1 Industrial Uses

Automobile Industry, Electrical Industry, Electronic Industry

Electrical Industry, Electronic Industry

4.1.2 Medical Uses

Pharmaceutical Industry

4.1.3 Other Uses

Alloys

4.2 Biological Properties

4.2.1 Toxicity

Toxic

Highly Toxic

4.2.2 Present in Human Body

✔ ✘

4.2.3 In Blood

NA7.00 Blood/mg dm-3

0 1970

4.2.5 In Bone

NA170.00 p.p.m.

0 170000

5 Physical

5.1 Melting Point

2,410.00 °C419.58 °C

27 3410

6.3 Boiling Point

4,527.00 °C907.00 °C

147 5660

6.4 Appearance

6.4.1 Physical State

Solid

6.4.2 Color

Silvery White

Silvery Gray

7.1.1 Luster

Metallic

7.2 Hardness

7.2.1 Mohs Hardness

6.502.50

0.2 8.5

7.2.2 Brinell Hardness

1,670.00 MPa327.00 MPa

0.14 3490

7.3.1 Vickers Hardness

1,760.00 MPaNA

121 3430

7.6 Speed of Sound

4,825.00 m/s3,850.00 m/s

818 16200

7.7 Optical Properties

7.7.1 Refractive Index

NA1.00

1.000933 1.7229

7.7.3 Reflectivity

78.00 %80.00 %

58 97

7.8 Allotropes

✔ ✘

7.8.1 α Allotropes

Not Available

7.8.2 β Allotropes

Not Available

7.8.3 γ Allotropes

Not Available

8 Chemical

8.1 Chemical Formula

8.2 Isotopes

8.2.1 Known Isotopes

3425

0 38

8.4 Electronegativity

8.4.1 Pauling Electronegativity

2.201.65

0.7 2.54

8.5.3 Sanderson Electronegativity

NA2.23

0.22 2.56

9.2.2 Allred Rochow Electronegativity

1.551.66

0.86 1.82

9.3.2 Mulliken-Jaffe Electronegativity

NA1.65

0.62 2.48

9.3.4 Allen Electronegativity

1.681.59

0.659 2.7

9.4 Electropositivity

9.4.1 Pauling Electropositivity

1.802.35

1.46 3.3

9.5 Ionization Energies

9.5.1 1st Energy Level

880.00 kJ/mol906.40 kJ/mol

375.7 26130

9.5.3 2nd Energy Level

1,600.00 kJ/mol1,733.30 kJ/mol

710.2162 28750

9.5.4 3rd Energy Level

NA3,833.00 kJ/mol

1600 34230

9.7.2 4th Energy Level

NA5,731.00 kJ/mol

2780 37066

9.7.4 5th Energy Level

NA7,970.00 kJ/mol

4305.2 97510

9.7.6 6th Energy Level

NA10,400.00 kJ/mol

5715.8 105800

9.7.7 7th Energy level

NA12,900.00 kJ/mol

7226.8 114300

9.7.9 8th Energy Level

NA16,800.00 kJ/mol

8857.4 125300

9.7.11 9th Energy Level

NA19,600.00 kJ/mol

14110 134700

9.7.13 10th Energy Level

NA23,000.00 kJ/mol

17100 144300

9.7.15 11th Energy Level

NA26,400.00 kJ/mol

19900 169988

9.7.17 12th Energy Level

NA29,990.00 kJ/mol

22219 189368

9.7.19 13th Energy Level

NA40,490.00 kJ/mol

26930 76015

9.7.21 14th Energy Level

NA43,800.00 kJ/mol

29196 86450

9.7.23 15th Energy Level

NA47,300.00 kJ/mol

41987 97510

9.7.25 16th Energy Level

NA52,300.00 kJ/mol

47206 109480

9.7.27 17th Energy Level

NA55,900.00 kJ/mol

52737 122200

9.7.29 18th Energy Level

NA59,700.00 kJ/mol

58570 134810

9.7.31 19th Energy Level

NA67,300.00 kJ/mol

64702 148700

9.7.32 20th Energy Level

NA171,200.00 kJ/mol

80400 171200

9.7.34 21st Energy Level

NA179,100.00 kJ/mol

87000 179100

9.7.35 22nd Energy Level

NANA

93400 184900

9.7.37 23rd Energy Level

NANA

98420 198800

9.7.39 24th Energy Level

NANA

104400 195200

9.7.41 25th Energy Level

NANA

121900 121900

9.7.43 26th Energy Level

NANA

127700 127700

9.7.45 27th Energy Level

NANA

133800 133800

9.7.47 28th Energy Level

NANA

139800 139800

9.7.50 29th Energy Level

NANA

148100 148100

9.7.53 30th Energy Level

NANA

154500 154500

9.8 Electrochemical Equivalent

1.14 g/amp-hr1.22 g/amp-hr

0.16812 8.3209

9.9 Electron Work Function

4.55 eV4.33 eV

2.14 5.65

9.11 Other Chemical Properties

Flammable, Ionization, Radioactive Isotopes, Radioactivity

Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes

10 Atomic

10.1 Atomic Number

7730

3 117

11.2 Electron Configuration

[Xe] 4f¹⁴ 5d⁷ 6s²

[Ar] 3d¹⁰ 4s²

11.3 Crystal Structure

Face Centered Cubic (FCC)

Hexagonal Close Packed (HCP)

11.3.1 Crystal Lattice

11.4 Atom

11.4.1 Number of Protons

7430

3 117

11.7.3 Number of Neutrons

11035

4 184

11.7.5 Number of Electrons

7430

3 117

11.9 Radius of an Atom

11.9.1 Atomic Radius

136.00 pm134.00 pm

112 265

11.10.1 Covalent Radius

141.00 pm122.00 pm

96 260

11.11.1 Van der Waals Radius

202.00 pm139.00 pm

139 348

11.14 Atomic Weight

192.22 amu65.38 amu

6.94 294

11.18 Atomic Volume

9.53 cm3/mol9.20 cm3/mol

1.39 71.07

12.2 Adjacent Atomic Numbers

12.2.1 Previous Element

12.2.2 Next Element

12.3 Valence Electron Potential

140.00 (-eV)38.90 (-eV)

8 392.42

12.6 Lattice Constant

383.90 pm266.49 pm

228.58 891.25

12.8 Lattice Angles

π/2, π/2, π/2

π/2, π/2, 2 π/3

12.9 Lattice C/A Ratio

NANA

1.567 1.886

13 Mechanical

13.1 Density

13.1.1 Density At Room Temperature

22.56 g/cm³7.14 g/cm³

0.534 40.7

13.1.4 Density When Liquid (at m.p.)

19.00 g/cm36.57 g/cm3

0.512 20

13.3 Tensile Strength

2,000.00 MPaNA

2.5 11000

14.2 Viscosity

NANA

0.001526 0.001526

14.3 Vapor Pressure

14.3.1 Vapor Pressure at 1000 K

NANA

2.47E-11 121

14.3.3 Vapor Pressure at 2000 K

0.00 (Pa)NA

2.62E-10 774

14.5 Elasticity properties

14.5.1 Shear Modulus

210.00 GPa43.00 GPa

1.3 222

14.5.3 Bulk Modulus

320.00 GPa70.00 GPa

1.6 462

14.5.5 Young's Modulus

528.00 GPa108.00 GPa

1.7 528

15.2 Poisson Ratio

0.260.25

0.032 0.47

15.4 Other Mechanical Properties

16 Magnetic

16.1 Magnetic Characteristics

16.1.1 Specific Gravity

21.786.90

0.53 4500

16.2.1 Magnetic Ordering

Paramagnetic

Diamagnetic

16.2.2 Permeability

NANA

1.25643E-06 0.0063

16.2.3 Susceptibility

NANA

-0.000166 200000

16.4 Electrical Properties

16.4.1 Electrical Property

Conductor

16.4.2 Resistivity

47.10 nΩ·m59.00 nΩ·m

0.18 961

16.5.1 Electrical Conductivity

0.19 10⁶/cm Ω0.17 10⁶/cm Ω

0.00666 0.63

16.6.2 Electron Affinity

151.00 kJ/mol0.00 kJ/mol

0 222.8

17 Thermal

17.1 Specific Heat

0.13 J/(kg K)0.39 J/(kg K)

0.11 3.6

17.2 Molar Heat Capacity

25.10 J/mol·K25.47 J/mol·K

16.443 62.7

17.4 Thermal Conductivity

147.00 W/m·K116.00 W/m·K

6.3 429

17.5 Critical Temperature

NANA

26.3 3223

17.6 Thermal Expansion

6.40 µm/(m·K)30.20 µm/(m·K)

4.5 97

17.7 Enthalpy

17.7.1 Enthalpy of Vaporization

799.10 kJ/mol7.32 kJ/mol

7.32 799.1

17.7.2 Enthalpy of Fusion

35.23 kJ/mol7.32 kJ/mol

2.1 35.23

17.7.3 Enthalpy of Atomization

837.00 kJ/mol129.70 kJ/mol

61.5 837

17.8 Standard Molar Entropy

35.50 J/mol.K41.60 J/mol.K

9.5 198.1

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