Constituent
Name
H2O crystalline - phase Ih
Official name
Water ice Ih
Family
molecular solid
Class
hydrogen bonded molecular solid
Compound type
inorganic molecular solid
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0 ± 0.0001
Mole fraction
1.0
Formula
H2O
Chemical formula
H2O
Elemental formula
(H)1.99998-2 (O)0.99999-1
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
H2O Water molecule 0.99999 - 1 0.999995 ± 4.999999999977245e-06 1.0 matrix main
CO2 Carbon dioxide molecule 0 - 1e-05 5e-06 ± 5e-06 1.0 monomers impurity
Composition comments
impurity disolved in precursor liquid H2O - to be quantified
Chemical functions
  Function Number Relevance
ROH 2 main
Chemical bonds
  Bond Number Relevance
OH 4
OH 2 main
=C=O 2 impurity
Oxides
Formula H2O
Mass fraction (%) 1.0
Class
molecular solids with hydrogen bonded molecules (03)
Type
homomolecular H-bonded solids (03.01)
Group
H2O polymorphs (03.01.01)
Code
03.01.01.01
Phase name
H2O Ih
Phase type
crystalline
Crystal system
hexagonal
Crystal class
dihexagonal-dipyramidal
Crystal class symbol
6/mmm (D6h)
Crystal spacegroup
P6(3)/mmc
Texture
monocrystalline
Molar mass
18.0153 g/mol
Density
0.917 (273 K) - 0.928 (90 K) g/cm3
Refringence type
uniaxial
Refringence sign
unknown
Birefringence
0.01
Refraction index nα
1.31
Refraction index nβ
1.33
Color
light blue (when thick)
Diaphaneity
transparent
Luster
vitreous