Solid phase
Official name
Copper(II) oxide
Secondary names
Cupric oxide
CAS number
1317-38-0
Type
Family
covalent network solid
Class
tridimentional covalent network solid
Compound type
oxide-hydroxide
Chemical composition
Formula
$CuO$
Chemical formula
CuO
Elemental formula
Cu O
Isotope mixture type
terrestrial abundance
4.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Cu$ Copper element 1 0.5 1.0 constituent element main
$O$ Oxygen element 1 0.5 1.0 constituent element main
Class
tridimensional covalent networks (11)
Phase type
crystalline
Crystal system
monoclinic
Crystal class
prismatic
Crystal class symbol
2/m (C2h)
Crystal spacegroup
C2/c
Molar mass
79.545 $g/mol$
Density
6.315 $g/cm^3$
State NTP
solid
Refringence type
biaxial
Refringence sign
unknown
Pure color
black
Color
black, grey, brown
Diaphaneity
opaque
Luster
earthy
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