Partial Saturated Vapor Pressure of Sodium Nitrite Over the System NaNO2-KNO3 |
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| Authors: | Glazov V I Dukhanin G P Losev V A |
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| Institution: | (1) Volgograd State Technical University, Volgograd, Russia |
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| 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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