Solid phase
Official name
Solid beta Nitrogen
Secondary names
Solid beta-N2; beta-N2
Type
Family
molecular solid
Class
non polar molecular solid
Compound type
inorganic molecular solid
Chemical composition
Formula
$N_2$
Chemical formula
N2
Elemental formula
N2
Isotope mixture type
terrestrial abundance
2.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$N_2$ Nitrogen molecule 1 1.0 1 pure main
Chemical bonds
  Bond Number
$N\equiv N$ 1
Class
molecular solids with apolar molecules (01)
Type
with diatomic homonuclear apolar molecules (A2) (01.02)
Polymorphs
Equivalent liquid
Liquid Nitrogen
Phase name
$\beta$-phase
Phase type
crystalline
Crystal system
hexagonal
Crystal class
dihexagonal-dipyramidal
Crystal class symbol
6/mmm (D6h)
Crystal spacegroup
P6(3)/mmc
Molar mass
28.0134 $g/mol$
State NTP
gas
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-solid $\alpha$-phase 35.61 K
solid-liquid liquid 63.15 K
triple point solid-liquid-gas liquid, gas 63.14 $\pm$ 0.06 K (0.1255 $\pm$ 0.0005 bar)
Refringence type
uniaxial
Refringence sign
unknown
Refraction index $n_{\alpha}$
1.25 (0.633 nm)
Pure color
colorless
Diaphaneity
transparent
Luster
vitreous
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