FormulaBaF2
Growth methodStockbarger technique
Max. sizes, (mm)Ø150
Transmission range, (µm)
(Thickness 10 mm)
0.18 – 12.0
Structurecubic
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 acidssoluble
Solubility in organic solventsundeclared
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