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 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
Crystal system
isometric (cubic)
Crystal class
hexoctahedral
Crystal class symbol
m-3m (Oh)
Crystal spacegroup
Fm-3c
Texture
polycrystalline
Molar mass
16.04250 $g/mol$
Refringence type
isotropic
Diaphaneity
transparent
Luster
vitreous