Materials Guide

BULK DENSITIES AND ZRATIOS

Material

Symbol

Bulk Density
(g/cm³)

ZRatio

Aluminum

AI

2.70

1.08

Antimony

Sb

6.62

0.768

Arsenic

As

5.73

0.966

Beryllium

Be

1.85

0.543

Boron

B

2.54

0.389

Cadmium

Cd

8.64

0.682

Cadmium sulfide

CdS

4.83

1.02

Cadmium telluride

CdTe

5.85

0.980

Calcium fluoride

CaF₂

3.18

0.775

Carbon (graphite)

C

2.25

3.26

Chromium

Cr

7.20

0.305

Cobalt

Co

8.71

0.343

Copper

Cu

8.93

0.437

Gllium

Ga

5.93

0.593

Gallium arsenide

GaAs

5.31

1.59

Germanium

Ge

5.35

0.516

Gold

Au

19.3

0.381

Indium

In

7.30

0.841

Indium antimonide

InSb

5.76

0.769

Iridium

Ir

22.4

0.129

Iron

Fe

7.86

0.349

Lead

Pb

11.3

1.13

Lead sulfide

PbS

7.50

0.566

Lithium fluoride

LiF

2.64

0.774

Magnesium

Mg

1.74

1.61

Magnesium oxide

MgO

3.58

0.411

Manganese

Mn

7.20

0.377

Molybdenum

Mo

10.2

0.257

Nickel

Ni

8.91

0.331

Niobium

Nb

8.57

0.493

Palladium

Pd

12.0

0.357

Platinum

Pt

21.4

0.245

Potassium chloride

KCl

1.98

2.05

Selenium

Se

4.82

0.864

Silicon

Si

2.32

0.712

Silicon dioxide (fused quartz)

SiO₂

2.20

1.07

Silver

Ag

10.5

0.529

Silver bromide

AgBr

6.47

1.18

Silver chloride

AgCl

5.56

1.32

Sodium chloride

NaCl

2.17

1.57

Tantalum

Ta

16.6

0.262

Tellurium

Te

6.25

0.900

Tin

Sn

7.30

0.724

Titanium

Ti

4.50

0.628

Titanium oxide

TiO

4.9

not available

Titanium dioxide

TiO₂

4.3

not available

Tungsten

W

19.3

0.163

Tungsten carbide

WC

15.6

0.151

Uranium

U

18.7

0.238

Vanadium

V

5.96

0.530

Yttrium

Y

4.34

0.835

Zinc

Zn

7.04

0.514

Zinc oxide

ZnO

5.61

0.556

Zinc selenide

ZnSe

5.26

0.722