Constituent
Name
δ-UO3 annealed at 450°C
Official name
Uranium trioxide
Family
covalent network solid
Class
tridimentional covalent network solid
Compound type
oxide
Constituent abundance in material
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0
Mole fraction
1.0
Chemical composition
Formula
$\delta UO_3$
Chemical formula
UO3
Elemental formula
U O3
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$U$ Uranium element 1 0.25 1 constituent element main
$O$ Oxygen element 3 0.75 1 constituent element main
Chemical bonds
  Bond Number
$\geq >U-O-$ 6
Class
tridimensional covalent networks (11)
Type
two non-metal (or one metalloid and one non-metal) atoms tridimensional networks (Ceramics) (11.03)
Phase name
$\gamma-UO_3$
Phase type
crystalline
Crystal system
isometric (cubic)
Crystal class
hexoctahedral
Crystal class symbol
m-3m (Oh)
Crystal spacegroup
Pm-3m
Texture
polycrystalline
Molar mass
286.29 $g/mol$
Density
6.72 $g/cm^3$
Refringence type
isotropic
Color
jaune-orange