Cobalt(II) oxide | SSHADE

Solid phase

Official name: Cobalt(II) oxide

Name and identifiers

Secondary names: Cobaltous oxide; Cobalt monooxide; Oxocobalt; Monocobalt oxide; CoO
CAS number: 1307-96-6

Family: covalent network solid
Class: tridimentional covalent network solid
Compound type: oxide

Chemical composition

Formula: $CoO$
Chemical formula: CoO
Elemental formula: Co O
Isotope mixture type: terrestrial abundance

4.0

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$Co$	Cobalt	element	1	0.5	1	constituent element	main
	$O$	Oxygen	element	1	0.5	1	constituent element	main

Chemical functions and bonds

Chemical bonds

	Bond	Number
	$-Co-O-$	6

Class: tridimensional covalent networks (11)
Type: one metal and one non-metal (or metalloid) tridimensional networks (11.04)

Crystallography

Phase type: crystalline
Crystal system: isometric (cubic)
Crystal class: hexoctahedral
Crystal class symbol: m-3m (Oh)
Crystal spacegroup: Fm-3m

Physical properties

Molar mass: 74.9326 $g/mol$
Density: 6.45 $g/cm^3$

Thermodynamical properties

State NTP

solid

Phase transitions

Phase transition type	Other phases	Temperature - Pressure
solid-liquid	liquid CoO	1933°C (2206 K)

Optical properties

Refringence type: isotropic
Pure color: green
Color: dark gray, black, olive green, red

Links and Publications

Links