Autor:	G. P. Dukhanin, V. I. Glazov, V. A. Losev
Rok vydání:	2002
Předmět:	Activity coefficient chemistry.chemical_compound Logarithm Vapor pressure Chemistry General Chemical Engineering Vaporization Analytical chemistry Inverse temperature Potassium nitrate General Chemistry Partial pressure Sodium nitrite
Zdroj:	Russian Journal of Applied Chemistry. 75:891-893
ISSN:	1070-4272
DOI:	10.1023/a:1020364008208
Popis:	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.
Databáze:	OpenAIRE
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