Volume properties of the molten systems MF-K2TaF7 (MF = LiF, NaF and KF)

被引：8

作者：

Mlynarikova, Jarmila ^{[1
]}

Boa, Miroslav ^{[1
]}

Miksikova, Eva ^{[1
]}

Netriova, Zuzana ^{[1
]}

机构：

[1] Slovak Acad Sci, Inst Inorgan Chem, Dubravska Cesta 9, Bratislava 84536, Slovakia

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2017年 / 129卷 / 01期

关键词：

Density; Molar volume; Excess molar volume; Partial molar volume; Excess partial molar volume; Tantalates; Molten salts; Fluorides; SURFACE-TENSION; PHYSICOCHEMICAL PROPERTIES; PHASE-ANALYSIS; DENSITY; MELTS; KF-K2TAF7; VISCOSITY; (LIF;

D O I：

10.1007/s10973-017-6137-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Based on experimental density measurements, molar volumes, excess molar volumes and partial molar volumes were calculated for the systems MF-K2TaF7 (MF = LiF, NaF and KF) at 1273 K. Excess partial molar volumes of K2TaF7 and MF at infinite dissolution were also calculated. Based on these values, the overall volume contraction was identified. This volume contraction consists of two contributions: a volume contraction induced by the association reaction of [TaF7](2-) and F- anions, and cationic volume contraction.

引用

页码：475 / 486

页数：12

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