Cementite | SSHADE

Processing math: 100%

Solid phase

Official name: Cementite

Name and identifiers

Secondary names: Iron carbide

Family: metallic solid
Class: pseudometal (semi-conductor)
Compound type: non-oxide ceramic
Comments: Cementite is very close to cohenite mineral which generally few Ni and Co

Chemical composition

Formula: $Fe_3C$
Chemical formula: Fe3C
Elemental formula: C Fe3
Isotope mixture type: terrestrial abundance

8.0

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$C$	Carbon	element	1	0.25	1.0	constituent element	main
	$Fe$	Iron	element	3	0.75	1.0	constituent element	main

Class: pseudometals (14)

Crystallography

Phase type: crystalline
Crystal system: orthorhombic
Crystal class: dipyramidal
Crystal class symbol: mmm (D2h)
Crystal spacegroup: Pnma

Physical properties

Molar mass: 179.546 $g/mol$
Density: 7.2 - 7.65 $g/cm^3$

Thermodynamical properties

State NTP: solid

Optical properties

Diaphaneity: opaque
Luster: metallic

Links and Publications

Links

Wikipedia