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Chromium

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Iridium

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Chromium

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Iridium

Physical Properties of Chromium and Iridium

Chromium Metal

Chromium

Iridium Metal

Iridium

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1 Physical

1.1 Melting Point

1,857.00 °C2,410.00 °C

27 3410

1.2 Boiling Point

2,672.00 °C4,527.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silver

Silvery White

1.3.3 Luster

Metallic

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

8.506.50

0.2 8.5

1.4.2 Brinell Hardness

687.00 MPa1,670.00 MPa

0.14 3490

1.4.3 Vickers Hardness

1,060.00 MPa1,760.00 MPa

121 3430

1.5 Speed of Sound

5,940.00 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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