Four-component reciprocal system Na,K∥F, CO3, WO4

被引：0

作者：

Kochkarov, Zh. A. ^{[1
]}

机构：

[1] Kabardino Balkar State Univ, Nalchik 360004, Russia

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2007年 / 52卷 / 03期

关键词：

Differential Thermal Analysis; Vertical Section; Sodium Tungstate; Peritectic Point; Crystallization Path;

D O I：

10.1134/S0036023607030266

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The four-component reciprocal system Na,K parallel to F, CO3, WO4 has been studied using differential thermal analysis in combination with projective and differential geometry. The a priori prediction of the crystallization path (CP) shows six quaternary invariant points; of them, three are eutectics and the others are peritectics. The dominant exchange and complexing reactions have been recognized. The following four-component systems have been studied: (NaF)(2)-(KF)(2)-K2CO3-K3FWO4 (1), (NaF)(2)-K2CO3-K2WO4-K3FWO4 (2), (NaF)(2)-Na2CO3-Na2WO4-K2WO4 (3),, and (NaF)(2)-Na2CO3-K2CO3-K2WO4 (4); the coordinates of all quaternary invariant points have been determined.

引用

页码：448 / 454

页数：7

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