Solid phase
Official name
Rhodium(III) oxide
Secondary names
Rhodium oxide; Rhodium sesquioxide; Rh2O3
CAS number
12036-35-0
Type
Family
covalent network solid
Class
tridimentional covalent network solid
Compound type
oxide
Chemical composition
Formula
$Rh_2O_3$
Chemical formula
Rh2O3
Elemental formula
Rh2 O3
Isotope mixture type
terrestrial abundance
10.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Rh$ Rhodium element 2 0.4 1 constituent element main
$O$ Oxygen element 3 0.6 1 constituent element main
Class
tridimensional covalent networks (11)
Type
one metal and one non-metal (or metalloid) tridimensional networks (11.04)
Phase type
crystalline
Crystal system
trigonal
Crystal class
ditrigonal-scalenohedral
Crystal class symbol
-3m (D3d)
Crystal spacegroup
R-3c
Molar mass
253.809 $g/mol$
Density
8.2 $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid decomposition liquid 1100°C (1370 K)
Refringence type
uniaxial
Pure color
gray
Color
gray, dark gray
Diaphaneity
transparent
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