碘化铯 Caesium Iodide (CsI)

Syngony

Cubic

Symmetry Class

m3m Pm3m

Lattice Constants

a = 4.567 Å

Refractive Index at n10.0

1.740

Refractive Index at n40.0

1.678

Thermal Coefficient of Refractive Index for 0-30℃

(-1.27) ... (-1.51) x 10^-5

Transmission Range, microns

0.25 - 55

Absorbance μ (λ) , cm -1

at 40 microns

0.1

at 45 microns

0.33

at 50 microns

0.5

48.1 x 10^-6

1.1

Specific Heat Capacity, J/(kg * ℃)

200

Melting Point, ℃

621

Density, g/cm3

4.509

Mohs Hardness

1-2

Young Modulus (E), Pa

2 x 10⁹

Shear Modulus (G), Pa

6.24 x 10⁹

Poisson Ratio

0.214

Molecular Weight

259.81

Solubility

in water, gram/100 cm3

44

in acids

soluble

Refractive Index

0.25

2.210

0.5

1.807

1.0

1.758

2.0

1.747

3.0

1.744

5.0

1.743

10.0

1.740

15.0

1.735

20.0

1.728

25.0

1.719

30.0

1.708

35.0

1.695

40.0

1.678

45.0

1.659

50.0

1.637

55.0

1.611