Constituent CH4 crystalline - phase II | SSHADE

Constituent

Name: CH4 crystalline - phase II
Official name: Methane II ice

Family: molecular solid
Class: non polar molecular solid
Compound type: organic molecular solid

Constituent abundance in material

Relevance: main - major
Arrangement: single phase
Mass fraction: 1.0
Mole fraction: 1.0 $\pm$ 5e-05

Chemical composition

Formula: $CH_4$
Chemical formula: CH4
Elemental formula: C H4
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$CH_4$	Methane	molecule	1	1.0	1.0	pure	main

Chemical functions and bonds

Chemical bonds

	Bond	Number	Relevance
	$\geq C-H$	4	main

Class: molecular solids with apolar molecules (01)
Type: with polyatomic organic apolar molecules (CnHm...) (01.06)

Phase name: CH4-II
Phase type: crystalline

Crystallography

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

Texture: polycrystalline

Physical properties

Molar mass: 16.04250 $g/mol$

Optical properties

Refringence type: isotropic
Diaphaneity: transparent
Luster: vitreous