This page provides supplementary chemical data on sodium sulfate.
Material Safety Data Sheet
The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Safety Data Sheet (SDS) for this chemical from the manufacturer and follow its directions.
Structure and properties
| Structure and properties[1] | |
|---|---|
| Index of refraction, nD | |
| Abbe number | ? |
| Dielectric constant, εr | anhydrous: 7.90 at r.t. decahydrate: 5.0 at r.t. pentahydrate: 7 at 250-290K |
| Bond strength | ? |
| Bond length | ? |
| Bond angle | ? |
| Magnetic susceptibility, χm | anhydrous: -52 x10−6 cm3 mol−1 decahydrate: -184 x10−6 cm3 mol−1 |
| Surface tension | 194.8 dyn/cm (194.8 mN/m) (at 900 °C) 184.7 dyn/cm (184.7 mN/m) (at 1077 °C) |
Thermodynamic properties
| Phase behavior | |
|---|---|
| Triple point | ? K (? °C), ? Pa |
| Critical point | ? K (? °C), ? Pa |
| Std enthalpy change of fusion, ΔfusH | 200.8 kJ/mol[1] |
| Std entropy change of fusion, ΔfusS | ? J/(mol·K) |
| Std enthalpy change of vaporization, ΔvapH | ? kJ/mol |
| Std entropy change of vaporization, ΔvapS | ? J/(mol·K) |
| Solid properties | |
| Std enthalpy change of formation, ΔfH | -1387.1 kJ/mol |
| Standard molar entropy, S | 149.6 J/(mol K) |
| Heat capacity, cp | 128.2 J/(mol K) |
| Entropy change of solution[1] | 2.1 J/(mol K) |
| Liquid properties | |
| Std enthalpy change of formation, ΔfH | ? kJ/mol |
| Standard molar entropy, S | ? J/(mol K) |
| Heat capacity, cp | ?kJ/(mol K) |
| Gas properties[2] | |
| Std enthalpy change of formation, ΔfH | -1033.62 kJ/mol |
| Standard molar entropy, S | 346.84 J/(mol K) |
| Heat capacity, cp | ? J/(mol K) |
Spectral data
| UV-Vis | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| λmax | ? nm | ||||||||||
| Extinction coefficient, ε | ? | ||||||||||
| IR | |||||||||||
| Major absorption bands[3] |
| ||||||||||
| NMR | |||||||||||
| Proton NMR | |||||||||||
| Carbon-13 NMR | |||||||||||
| Other NMR data | |||||||||||
| MS | |||||||||||
| Masses of main fragments | |||||||||||
References
- ^ a b c Mellor, J. W. (1961 (new impr.)). A Comprehensive Treatise on Inorganic and Theoretical Chemistry. London: Longmans. pp. 660–672.
- ^ "Sodium sulfate". NIST. Retrieved 2007-06-14.
- ^ "Spectral Database for Organic Compounds". Advanced Industrial Science and Technology. Archived from the original (Queriable database) on 5 May 2006. Retrieved 9 June 2007.
Except where noted otherwise, data relate to standard ambient temperature and pressure.