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Praseodymium

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Iridium

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Praseodymium

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Iridium

Physical Properties of Praseodymium and Iridium

Praseodymium Metal

Praseodymium

Iridium Metal

Iridium

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1 Physical

1.1 Melting Point

935.00 °C2,410.00 °C

27 3410

1.2 Boiling Point

3,130.00 °C4,527.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Grayish White

Silvery White

1.3.3 Luster

Metallic

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

NA6.50

0.2 8.5

1.4.2 Brinell Hardness

481.00 MPa1,670.00 MPa

0.14 3490

1.4.3 Vickers Hardness

400.00 MPa1,760.00 MPa

121 3430

1.5 Speed of Sound

2,280.00 m/s4,825.00 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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