sodium sulphate
- Formula: Na2O4S
- Molecular weight: 142.042
- IUPAC Standard InChI: InChI=1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
- IUPAC Standard InChIKey: PMZURENOXWZQFD-UHFFFAOYSA-L
- CAS Registry Number: 7757-82-6
- Chemical structure:
This structure is also available as a 2d Mol file - Species with the same structure:
- Other names: Sulfuric acid, sodium salt; Sulfuric acid sodium salt (1:2); Sodium sulfate
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Reaction thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: José A. Martinho Simões
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
C2H5NaO (cr) + 0.5( • 1100
) (solution) =
(solution) + 0.5
(solution)
By formula: C2H5NaO (cr) + 0.5(H2O4S • 1100H2O) (solution) = C2H6O (solution) + 0.5Na2O4S (solution)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -118.4 ± 3.8 | kJ/mol | RSC | Blanchard, Joly, et al., 1974 | solvent: Sulphuric acid aqueous solution; The reaction enthalpy relies on -10.6 kJ/mol for the enthalpy of solution of EtOH(l) and on 9.97±0.04 for the enthalpy of solution of Na2SO4(cr) Blanchard, Joly, et al., 1974. A value of -490.8 ± 5.9 kJ/mol was derived in Blanchard, Joly, et al., 1974 for the enthalpy of formation. However, this value is affected by a calculation error. Also, the authors have not accounted for the acid dilution (this correction could not be made in the present database, due to lack of information). These problems were also noted in the data compilations Tel'noi and Rabinovich, 1980 and Wagman, Evans W.H., et al., 1982, where the values quoted for the enthalpy of formation, which rely on the experimental data reported in Blanchard, Joly, et al., 1974, are -410.0 ± 4.2 kJ/mol and -413.8 kJ/mol, respectively. See also comments in Liebman, Martinho Simões, et al., 1995 |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Blanchard, Joly, et al., 1974
Blanchard, J.M.; Joly, R.D.; Lettoffe, J.M.; Perachon, G.; Thourey, J.,
J. Chim. Phys. Phys.-Chim. Biol., 1974, 71, 472. [all data]
Tel'noi and Rabinovich, 1980
Tel'noi, V.I.; Rabinovich, I.B.,
Russ. Chem. Rev., 1980, 49, 603. [all data]
Wagman, Evans W.H., et al., 1982
Wagman, D.D.; Evans W.H.; Parker, V.B.; Schumm, R.H.; Halow, I.; Bailey, S.M.; Churney, K.L.; Nuttall, R.L.,
The NBS Tables of Chemical Thermodynamic Properties; J. Phys. Chem. Ref. Data, 1982, 11, Suppl. 2. [all data]
Liebman, Martinho Simões, et al., 1995
Liebman, J.F.; Martinho Simões, J.A.; Slayden, S.W.,
In Lithium Chemistry: A Theoretical and Experimental Overview Wiley: New York, Sapse, A.-M.; Schleyer, P. von Ragué, ed(s)., 1995. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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