Constituent
Name
U3O7 annealed at 250°C
Official name
Triuranium heptaoxide
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
$U_3O_7$
Chemical formula
U3O7
Elemental formula
U3 O7
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$U$ Uranium element 3 0.3 1 constituent element main
$O$ Oxygen element 7 0.7 1 constituent element main
Chemical bonds
  Bond Number
$\geq >U-O-$
Class
tridimensional covalent networks (11)
Type
two non-metal (or one metalloid and one non-metal) atoms tridimensional networks (Ceramics) (11.03)
Phase type
crystalline
Crystal system
tetragonal
Crystal class
dipyramidal
Crystal class symbol
4/m (C4h)
Crystal spacegroup
P4(2)/n
Texture
polycrystalline
Molar mass
826.082 $g/mol$
Refringence type
uniaxial