Formula BaF2
Growth method Stockbarger technique
Max. sizes, (mm) Ø150
Transmission range, (µm)
(Thickness 10 mm)
0.18 – 12.0
Structure cubic
Density (g/cm3) 4.83
Melting point (°C) 1354
Hardness (Mohs) 3
Thermal expansion coefficient (10-6/K) 16.5-19.2
Thermal conductivity (W m-1 K-1) 7.1
Specific heat capacity (J kg-1 K-1) 456
Solubility in water (g/100 cm3) 0.17
Solubility in acids soluble
Solubility in organic solvents undeclared
Wavelength (µm)
Refractive index
0.2
0.5
1.0
5.0
10.0
12.0
1.5573
1.4779
1.4686
1.4511
1.4014
1.3696
Absorption coefficient (cm-1)

 

0.20 at 0.2 µm
0.08 at 0.4 µm
0.13 at 10.6 µm

Barium Fluoride Spectrum