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.
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Glazov, V.I., Dukhanin, G.P. & Losev, V.A. Partial Saturated Vapor Pressure of Sodium Nitrite Over the System NaNO2-KNO3 . Russian Journal of Applied Chemistry 75, 891–893 (2002). https://doi.org/10.1023/A:1020364008208
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DOI: https://doi.org/10.1023/A:1020364008208