Barium Flourid
BaF2
Chemical name
Barium Flourid
Mineral name
Barium Flourid
Chemical formula
BaF2
Melting point [°C]
1386
Crystal system
cubic
Unit cell
a [Å]:6,20
b [Å]:6,20
c [Å]:6,20
Molecular weight [g/mol]
175.3368
Density [g/cm3]
4.89
Cleavage
(111) cleavage plane
Color
black to brown
Refractive Index
n0=1.6654; ne=1.4898 at 509 nm
Other
CaF2 type structure, application as scintillation material / correction part in lens systems; radiation resistant, susceptible to thermal shock laser damage threshold: 27.5 GW/cm^2 at 3.8 μm, 75 ns pulse length
Piezoelectric crystals
 
termal conductivity [W/m/K]
11.72 (at 13°C)
thermal expansation coefficient [(10^(-5))/K]
1.81 (at - 110 - 120 °C)
 
Specific heat [J/(kg*K)]
410 (at 27 °C)
Dielectric constant
7.33 (at f = 2 MHz)
Transmission range
0.15 - 15 μm
Solubility in water
0.17g / 100g (at 23 °C)
Hardness (Knoop)
82 (indenter load: 500g)
Young's modulus [GPa]
56.4
Bulk modulus [GPa]
268.89
Shear modulus [GPa]
25.4
Rupture modulus [MPa]
26.2
Elastic coefficient
C11 = 90.4; C12 = 40.6; C44 = 25.3 Gpa