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Europium

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Iridium

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Europium

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Iridium

Physical Properties of Europium and Iridium

Europium Metal

Europium

Iridium Metal

Iridium

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1 Physical

1.1 Melting Point

822.00 °C2,410.00 °C

27 3410

1.2 Boiling Point

1,597.00 °C4,527.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery White

Silvery White

1.3.3 Luster

Lustrous

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

NA6.50

0.2 8.5

1.4.2 Brinell Hardness

NA1,670.00 MPa

0.14 3490

1.4.3 Vickers Hardness

167.00 MPa1,760.00 MPa

121 3430

1.5 Speed of Sound

NA4,825.00 m/s

818 16200

1.6 Optical Properties

1.6.1 Refractive Index

NANA

1.000933 1.7229

1.6.2 Reflectivity

NA78.00 %

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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