Constituent
Name
LaF3
Official name
Lanthanum trifluoride
Family
ionic solid
Class
normal salt
Compound type
fluoride
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0
Mole fraction
1.0
Formula
LaF3
Chemical formula
LaF3
Elemental formula
(La3+) (F-)3
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
La3+ Lanthanum cation element 1 0.25 1 constituent cation main
F Fluoride anion element 3 0.75 1 constituent anion main
Chemical bonds
  Bond Number
()La3+F 3
Class
normal salts (07)
Type
simple normal salts (07.01)
Phase type
crystalline
Crystal system
trigonal
Crystal class
ditrigonal-scalenohedral
Crystal class symbol
-3m (D3d)
Crystal spacegroup
P-3c1
Texture
polycrystalline
Molar mass
195.9 g/mol
Density
5.9 g/cm3
Refringence type
uniaxial
Refringence sign
negative
Birefringence
0.006
Refraction index nα
1.609
Refraction index nβ
1.603
Color
white
Diaphaneity
transparent to translucent
Luster
vitreous