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Praseodymium

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Barium

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Praseodymium

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Barium

Physical Properties of Praseodymium and Barium

Praseodymium Metal

Praseodymium

Barium Metal

Barium

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1 Physical

1.1 Melting Point

935.00 °C725.00 °C

27 3410

1.2 Boiling Point

3,130.00 °C1,140.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Grayish White

Silvery Gray

1.3.3 Luster

Metallic

NA

1.4 Hardness

1.4.1 Mohs Hardness

NA1.25

0.2 8.5

1.4.2 Brinell Hardness

481.00 MPaNA

0.14 3490

1.4.3 Vickers Hardness

400.00 MPaNA

121 3430

1.5 Speed of Sound

2,280.00 m/s1,620.00 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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