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Article

Thermophysical Properties of Materials
2009. V. 47. № 6. P. 815–821
Taova T.M., Mal'surgenova F.M., Alchagirov B.B., Khokonov Kh.L.
The density and molar volumes of ternary alloys of cross sections of the sodium-potassium-cesium system technically important temperatures
Annotation
The density of well over 130 liquid ternary alloys of the NaKCs system along the cross sections extending towards the vertexes of potassium, cesium, and sodium of the triangle of compositions is determined experimentally and by a numerical-and-graphic method. The pycnometric method is used for measuring the density in the temperature range from liquidus temperature to 553 K. The relative experimental error is 0.10% at confidence probability of 95%. The polytherms of density and molar volumes of the alloys are described by linear equations. In so doing, the isotherms of density of cesium-“rich” ternary alloys exhibit positive deviations, and the isotherms of molar volumes exhibit minor negative deviations from additivity, which are indicative of the nonideality of the solutions of the NaKCs system.
Article reference:
Taova T.M., Mal'surgenova F.M., Alchagirov B.B., Khokonov Kh.L. The density and molar volumes of ternary alloys of cross sections of the sodium-potassium-cesium system technically important temperatures, High Temp., 2009. V. 47. № 6. P. 815