VAPOR-PRESSURE OF (POTASSIUM HYDROXIDE PLUS AMMONIA PLUS WATER) SOLUTIONS

被引：10

作者：

CACCIOLA, G ^{[1
]}

RESTUCCIA, G ^{[1
]}

ARISTOV, Y ^{[1
]}

机构：

[1] BORESKOV INST CATALYSIS,NOVOSIBIRSK 630090,RUSSIA

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 1995年 / 40卷 / 01期

关键词：

Ammonia - Composition effects - Computational methods - Curve fitting - Enthalpy - Potassium compounds - Thermal effects - Vapor pressure - Water;

D O I：

10.1021/je00017a058

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experimental results on equilibrium pressure over KOH + NH3 + H2O solutions are reported. The temperature was varied between -6 and +30 degrees C, while the molalities of NH3 and KOH were varied in the range 1-12 and 1-10 mol.kg(-1), respectively. An analytical equation of the equilibrium pressure as a function of temperature and concentrations was obtained. The partial molar enthalpy of solution of ammonia in the KOH + H2O mixtures and the Henry coefficients for ammonia were also calculated. For the ternary mixture the Setschenow relation was considered and validated in the range of measured concentrations.

引用

页码：267 / 270

页数：4

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