Liquid phase
Official name
FULL Liquid water
Secondary names
Water; oxidane; Hydrogen oxide; Dihydrogen oxide
CAS number
99-99-99
Class
hydrogen bonded molecular liquid
Compound type
liquid solution
Phase type
liquid
Solution type
polar protic solution
Comments
comments
Formula
$F-H_2O$
Chemical formula
H2O
Isotope mixture type
terrestrial abundance
  Formula Name Family Mole fraction State Relevance
L-$(COOH)CH_2CHOH(COOH)$ FULL molecule molecule 0.99 mol/l pure main
R-$(COOH)_2CHOSF2$ TEST molecule molecule 0.01 mol/l solute main
Composition comments
composition_comments
Chemical functions
  Function Number
$R-CH2-OH$ 1
$R-C(=O)-R$ 2
$R-CH2-OH$ 3
$R-C(=O)-R$ 1
R-V=R 2
$R-C(=O)-R$ 1
Chemical bonds
  Bond Number
$-C \leq H_3$ 3
$=C=O$ 99
$-C \leq H_3$ 3
$=C=O$ 2
>V=V< 1
$=C=O$ 2
Molar mass
18.0153 $g/mol$
Density
0.997 (298 K) $g/cm^3$
pH
7
State NTP
liquid
Phase transitions
Phase transition type Other phases Temperature - Pressure
triple point solid-liquid-gas liquid water, gas 273.16 K (611.66Pa)
solid-liquid liquid water 273.15 K (100 kPa)
Phase transitions comments
comments on liquefaction
Refraction index n
1.3330
Dispersion V
0.99
Pure color
colorless
Diaphaneity
transparent