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Scandium

☒

Hafnium

☒

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Scandium

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Hafnium

Physical Properties of Scandium and Hafnium

Scandium Metal

Scandium

Hafnium Metal

Hafnium

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1 Physical

1.1 Melting Point

1,539.00 °C2,150.00 °C

27 3410

1.2 Boiling Point

2,832.00 °C5,400.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery White

Gray

1.3.3 Luster

Lustrous

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

NA5.50

0.2 8.5

1.4.2 Brinell Hardness

750.00 MPa1,450.00 MPa

0.14 3490

1.4.3 Vickers Hardness

NA1,520.00 MPa

121 3430

1.5 Speed of Sound

NA3,010.00 m/s

818 16200

1.6 Optical Properties

1.6.1 Refractive Index

NANA

1.000933 1.7229

1.6.2 Reflectivity

NANA

58 97

1.7 Allotropes

✔ ✘

✔ ✘

1.7.1 α Allotropes

Not Available

Not Available

1.7.2 β Allotropes

Not Available

Not Available

1.7.3 γ Allotropes

Not Available

Not Available

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