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Iron

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Cobalt

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Iron

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Cobalt

Physical Properties of Iron and Cobalt

Iron Metal

Iron

Cobalt Metal

Cobalt

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1 Physical

1.1 Melting Point

1,535.00 °C1,495.00 °C

27 3410

1.2 Boiling Point

2,750.00 °C2,870.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Gray

Gray

1.3.3 Luster

Metallic

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

4.005.00

0.2 8.5

1.4.2 Brinell Hardness

200.00 MPa470.00 MPa

0.14 3490

1.4.3 Vickers Hardness

608.00 MPa1,043.00 MPa

121 3430

1.5 Speed of Sound

5,120.00 m/s4,720.00 m/s

818 16200

1.6 Optical Properties

1.6.1 Refractive Index

NANA

1.000933 1.7229

1.6.2 Reflectivity

65.00 %67.00 %

58 97

1.7 Allotropes

✔ ✘

✔ ✘

1.7.1 α Allotropes

Ferrite (alpha Iron)

α-Cobalt

1.7.2 β Allotropes

beta Iron

β-Cobalt

1.7.3 γ Allotropes

gamma Iron

Not Available

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