Published March 2007
| Version v1
Journal article
Four-component reciprocal system Na, K//F, CO3, WO4
Creators
- 1. Kabardino-Balkarskij Gosudarstvennyj Univ., Nal'chik (Russian Federation)
Description
The four-component reciprocal system Na, K//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 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
Abstract (Russian)
Методом дифференциального термического анализа с использованием приемов проективной и дифференциальной геометрии исследована четырехкомпонентная взаимная система Na, K//F, СО3, WO4. Методом априорного прогноза древа кристаллизации найдены шесть четверных нонвариантных точек, три из которых являются эвтектическими, остальные - перитектическими. Выявлены доминирующие реакции взаимного обмена и комплексообразования. Изучены четырехкомпонентные системы: (NaF)2-(KF)2-K2CO3-K3FWO4 (1), (NaF)2-K2CO3-K2WO4-K3FWO4 (2), (NaF)2-Na2CO3-Na2WO4-K2WO4 (3), (NaF)2-Na2CO3-K2CO3-K2WO4 (4) и определены координаты всех четверных нонвариантных точекAdditional details
Additional titles
- Original title (Russian)
- Четырехкомпонентная взаимная система На, К//Ф, CO
Publishing Information
- Journal Title
- Zhurnal Neorganicheskoj Khimii
- Journal Volume
- 52
- Journal Issue
- 3
- Journal Page Range
- p. 501-507
- ISSN
- 0044-457X
- CODEN
- ZNOKAQ
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 38062841
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ALKALI METAL COMPOUNDS; CARBONATES; CHEMICAL COMPOSITION; CHEMICAL REACTIONS; CRYSTALLIZATION; DIFFERENTIAL THERMAL ANALYSIS; EUTECTICS; FLUORIDES; PHASE DIAGRAMS; PHASE STUDIES; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K; TRANSITION TEMPERATURE; TUNGSTATES
- Descriptors DEC
- CARBON COMPOUNDS; DIAGRAMS; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; INFORMATION; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; REFRACTORY METAL COMPOUNDS; TEMPERATURE RANGE; THERMAL ANALYSIS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TUNGSTEN COMPOUNDS
Optional Information
- Notes
- 11 refs., 5 figs., 2 tabs.