Constituent
- Name
- CO ice
- Official name
- alpha Carbon Monoxide
- Family
- molecular solid
- Class
- polar molecular solid
- Compound type
- inorganic molecular solid
- Relevance
- main - major
- Arrangement
- single phase
- Mass fraction
- 1.0
- Mole fraction
- 1.0 $\pm$ 3e-05
- Formula
- $\alpha-CO$
- Chemical formula
- CO
- Elemental formula
- C O
- Isotope mixture type
- terrestrial abundance
- Class
- molecular solids with polar molecules (02)
- Type
- with polyatomic inorganic polar molecules (02.02)
- Phase name
- $\alpha-CO$
- Phase type
- crystalline
- Crystal system
- isometric (cubic)
- Crystal class
- tetartoidal
- Crystal class symbol
- 23 (T)
- Crystal spacegroup
- P2(1)3
- Crystal molecule sites
-
Label Type Nb Species Species coordinence Species occupancy Species order S6 main 4 $CO$ 1.0 fixed position - Comments
- order-disorder phase transition around 30-35K (head-to-tail reorientation of CO)
- Texture
- polycrystalline
- Molar mass
- 28.01014082 $g/mol$
- Density
- 1.0394 @14K to 0.983 @62.5K $g/cm^3$
- Refringence type
- isotropic
- Diaphaneity
- transparent
- Luster
- vitreous