Constituent
Name
La2O3
Official name
Lanthanum(III) oxide
Family
ionic solid
Class
alkali salt
Compound type
oxide
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0
Mole fraction
1.0
Formula
La3+2O23
Chemical formula
La2O3
Elemental formula
(La3+)2 (O2-)3
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
La3+ Lanthanum cation element 2 0.4 1 constituent cation main
O2 Oxide anion element 3 0.6 1 constituent anion main
Chemical bonds
  Bond Number
()La3+O2 7
Class
alkali salts (06)
Type
simple alkali salts (06.01)
Phase name
A-La2O3 (trigonal but sometimes called hexagonal-La2O3)
Phase type
crystalline
Crystal system
trigonal
Crystal class symbol
-3m (D3d)
Crystal spacegroup
P-3m1
Comments
crystal class: Ditrigonal scalenohedral
Texture
polycrystalline
Molar mass
325.809 g/mol
Density
6.51 g/cm3
Refringence type
uniaxial
Color
white