Sodium sulfate (data page)

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Template:Short description

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

Template:Chembox header | 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

Template:Chembox header | Phase behavior
Triple point ? K (? °C), ? Pa
Critical point ? K (? °C), ? Pa
Std enthalpy change
of fusion, ΔfusHo 		200.8 kJ/mol[1]
Std entropy change
of fusion, ΔfusSo 		? J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo 		? kJ/mol
Std entropy change
of vaporization, ΔvapSo 		? J/(mol·K)
Template:Chembox header | Solid properties
Std enthalpy change
of formation, ΔfHosolid 		-1387.1 kJ/mol
Standard molar entropy,
Sosolid 		149.6 J/(mol K)
Heat capacity, cp 128.2 J/(mol K)
Entropy change of solution[1] 2.1 J/(mol K)
Template:Chembox header | Liquid properties
Std enthalpy change
of formation, ΔfHoliquid 		? kJ/mol
Standard molar entropy,
Soliquid 		? J/(mol K)
Heat capacity, cp ?kJ/(mol K)
Template:Chembox header | Gas properties[2]
Std enthalpy change
of formation, ΔfHogas 		-1033.62 kJ/mol
Standard molar entropy,
Sogas 		346.84 J/(mol K)
Heat capacity, cp ? J/(mol K)

Spectral data

Template:Chembox header | UV-Vis
λmax ? nm
Extinction coefficient, ε ?
Template:Chembox header | IR
Major absorption bands[3]
(nujol mull, nujol pks not listed)
Wave number transmittance
1124 cm−1 10% (br)
638 cm−1 42%
618 cm−1 35%
Template:Chembox header | NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
Template:Chembox header | MS
Masses of
main fragments 		 

Template:Chemical data page general note

References

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