Partial Saturated Vapor Pressure of Sodium Nitrite Over the System NaNO2-KNO3

Partial Saturated Vapor Pressure of Sodium Nitrite Over the System NaNO2-KNO3 The partial pressure of sodium nitrite in the system NaNO2-KNO3 was measured at 798, 823, and 848 K. The dependence of the logarithm of the NaNO2 pressure on inverse temperature is presented. Coefficients A and B of the Clausius-Clapeyron equation and the partial molar heats of vaporization are calculated. The activity and activity coefficient of sodium nitrite are determined. The dependences of ac- tivity and activity coefficient of sodium nitrite and potassium nitrate are presented as functions of composition of the NaNO2-KNO3 system. The consistency of the activity coefficients is verified using the Redlich-Kister integral. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Partial Saturated Vapor Pressure of Sodium Nitrite Over the System NaNO2-KNO3

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2002 by MAIK “Nauka/Interperiodica”
Subject
Chemistry; Chemistry/Food Science, general
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1023/A:1020364008208
Publisher site
See Article on Publisher Site

Abstract

The partial pressure of sodium nitrite in the system NaNO2-KNO3 was measured at 798, 823, and 848 K. The dependence of the logarithm of the NaNO2 pressure on inverse temperature is presented. Coefficients A and B of the Clausius-Clapeyron equation and the partial molar heats of vaporization are calculated. The activity and activity coefficient of sodium nitrite are determined. The dependences of ac- tivity and activity coefficient of sodium nitrite and potassium nitrate are presented as functions of composition of the NaNO2-KNO3 system. The consistency of the activity coefficients is verified using the Redlich-Kister integral.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Oct 13, 2004

References

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