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 Dielectric constant, εr anhydrous: 7.90 at r.t.decahydrate: 5.0 at r.t.pentahydrate: 7 at 250-290K 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 Solid properties Entropy change of solution 2.1 J/(mol K) Liquid properties Gas properties Std enthalpy changeof formation, ΔfHogas -1033.62 kJ/mol Standard molar entropy,Sogas 346.84 J/(mol K)
Spectral data
UV-Vis IR Major absorption bands (nujol mull, nujol pks not listed) Wave number transmittance 1124 cm−1 10% (br) 638 cm−1 42% 618 cm−1 35% NMR
References