| Molecular formula | H2O |
| CAS Number | 7732-18-5 |
| EC Number | 231-791-2 |
| PubChem Substance ID | 329798917 |
| MDL number | MFCD00011332 |
| Molecular (Formula) weight | 18.02 |
| Molar mass | 18.02 g/mole |
| Color | Colorless, transparent |
| Odor | Odorless |
| Taste | Tasteless |
| Specific gravity | 1 |
| Density (⍴) at 25°C | 0.997 g/ml or 0.997 g/cm3 |
| Physical state | liquid (water), solid (Ice), vapour (gas) |
| Boiling point | 100 °C |
| Melting point | 0 °C |
| Remarks | The density of Ice (solid form of water) is less than liquid water |
