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Thulium

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Cobalt

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Thulium

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Cobalt

Physical Properties of Thulium and Cobalt

Thulium Metal

Thulium

Cobalt Metal

Cobalt

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1 Physical

1.1 Melting Point

1,545.00 °C1,495.00 °C

27 3410

1.4 Boiling Point

1,730.00 °C2,870.00 °C

147 5660

2.5 Appearance

2.5.1 Physical State

Solid

Solid

2.5.2 Color

Silvery Gray

Gray

2.5.3 Luster

Metallic

Metallic

2.6 Hardness

2.6.1 Mohs Hardness

NA5.00

0.2 8.5

3.1.1 Brinell Hardness

471.00 MPa470.00 MPa

0.14 3490

3.4.3 Vickers Hardness

520.00 MPa1,043.00 MPa

121 3430

4.7 Speed of Sound

NA4,720.00 m/s

818 16200

4.10 Optical Properties

4.10.1 Refractive Index

NANA

1.000933 1.7229

4.11.4 Reflectivity

NA67.00 %

58 97

4.14 Allotropes

✔ ✘

✔ ✘

4.14.1 α Allotropes

Not Available

α-Cobalt

4.14.2 β Allotropes

Not Available

β-Cobalt

4.14.3 γ Allotropes

Not Available

Not Available

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