Gourt Home::Gourt :: Water (data page)
This page provides supplementary chemical data on water.
Material Safety Data Sheet
The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions.
Inhaling of water drops can lead to coughing; filling lungs with water can be lethal. Ingesting of excessive amounts of water can lead to dangerous water intoxication.
Structure and properties
| Structure and properties | |
|---|---|
| Index of refraction, nD | 1.333 at 20 °C |
| Dielectric constant | 80.2 at 20 °C |
| Bond strength | ? |
| Bond length | 95.87 pm (equilibrium) (Cook 1974) |
| Bond angle | 103.9° (equilibrium) (Cook 1974) |
| Magnetic susceptibility | ? |
Thermodynamic properties
| Phase behavior | |
|---|---|
| Triple point | 273.16 K (0.01 °C), 599.844 Pa |
| Critical point | 647 K (374 °C), 22.1 MPa |
| Std enthalpy change of fusion, ΔfusH | 6.02 kJ/mol |
| Std entropy change of fusion, ΔfusS | ? J/(mol·K) |
| Std enthalpy change of vaporization, ΔvapH | 40.68 kJ/mol |
| Std entropy change of vaporization, ΔvapS | 108.9 J/(mol·K) |
| Solid properties | |
| Std enthalpy change of formation, ΔfH | −291.83 kJ/mol |
| Standard molar entropy, S | 41 J/(mol K) |
| Heat capacity, cp | 37.7 J/(mol K) |
| Liquid properties | |
| Std enthalpy change of formation, ΔfH | −285.83 kJ/mol |
| Standard molar entropy, S | 69.95 J/(mol K) |
| Heat capacity, cp | 75.4 J/(mol K) |
| Gas properties | |
| Std enthalpy change of formation, ΔfH | −241.83 kJ/mol |
| Standard molar entropy, S | 188.84 J/(mol K) |
| Heat capacity, cp | 36.2 J/(mol K) |
Spectral data
| UV-Vis | |
|---|---|
| λmax | ? nm |
| Extinction coefficient, ε | ? |
| IR | |
| Major absorption bands | ? cm−1 |
| NMR | |
| Proton NMR | |
| Carbon-13 NMR | |
| Other NMR data | |
| MS | |
| Masses of main fragments | |
References
- Cook, R.L, Lucia, F.C.D, & Helminger, P. 1974, J. Mol. Spectrosc., 53, 62.
Except where noted otherwise, data relate to standard ambient temperature and pressure.
Chemical infobox applies.
"Water (data page)"