Reactions in the MVO3 - VOSO4 - H2O (M = Rb, Cs) systems and the phase composition solids
- 1. UrO RAN, Inst. Khimii Tverdogo Tela, Ekaterinburg (Russian Federation)
Description
Formation of solid phases in the MVO3 - VOSO4 - H2O systems, where M Rb, Cs, are studied by method of isomolar series at 20 Deg C in the air. As it was established on the evidence from chemical, IR-spectroscopic and X-ray diffraction analyses of precipitate, the Rb4V6O16 and Rb2V6O16 · nH2O mixture was generated at molar relationships VOSO4 : RbVO3 = 0.111 - 0.25 in the RbVO3 - VOSO4 - H2O system; Rb2.5V6O16.2 · 3H2O was formed at 0.43 and the phase RbxV12O31-δ · nH2O with RbV5O13-δ · nH2O impurity, which was extinct at VOSO4 : RbVO3 > 4, was generated over the 0.66 - 9 interval of ratios. The Cs1.8V4O10.8 compound was obtained in the CsVO3 - VOSO4 - H2O system at VOSO4 : CsVO3 = 0.111 and the Cs4V6O16 and Cs2V6O16 · nH2O mixture - at 0.25. Hexavanadate Cs2V6O16 · nH2O with the CsV5O13-δ · nH2O impurity were deposited over the 0.43 - 0.66 and 1 - 9 intervals correspondingly. IR spectra of synthesized vanadates are demonstrated and discussed
Abstract (Russian)
Методом изомолярных серий при 20 град. С на воздухе изучено образование твердых фаз в системах MVO3 - VOSO4 - H2O, где M = Rb, Cs. По данным химического ИК-спектроскопического и рентгенофазового анализов осадков установлено: в системе RbVO3 - VOSO4 - H2O при молярных отношениях VOSO4 : RbVO3 = 0.111 - 0.25 образуется смесь Rb4V6O16 и Rb2V6O16 · nH2O; при 0.43 - Rb2.5V6O16.2 · 3H2O и в интервале отношений 0.66 - 9 - фаза RbxV12O31-δ · nH2O с примесью RbV5O13-δ · nH2O, которая исчезает при VOSO4 : RbVO3 > 4. В системе CsVO3 - VOSO4 - H2O при VOSO4 : CsVO3 = 0.111 получено соединение Cs1.8V4O10.8 и при 0.25 - смесь Cs4V6O16 и Cs2V6O16 · nH2O. В интервалах 0.43 - 0.66 и 1 - 9 осаждаются гексаванадат Cs2V6O16 · nH2O с примесью CsV5O13-δ · nH2O соответственно. Приведены и обсуждены ИК-спектры синтезированных ванадатовAdditional details
Additional titles
- Original title (Russian)
- Взаимодействие в системах MVO
Publishing Information
- Journal Title
- Zhurnal Neorganicheskoj Khimii
- Journal Volume
- 46
- Journal Issue
- 4
- Journal Page Range
- p. 663-668
- ISSN
- 0044-457X
- CODEN
- ZNOKAQ
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 33016099
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CESIUM COMPOUNDS; CHEMICAL ANALYSIS; CHEMICAL COMPOSITION; CONCENTRATION RATIO; INFRARED SPECTRA; PHASE STUDIES; RUBIDIUM COMPOUNDS; SOLIDS; SULFATES; TEMPERATURE RANGE 0273-0400 K; VANADATES; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALI METAL COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; OXYGEN COMPOUNDS; SCATTERING; SPECTRA; SULFUR COMPOUNDS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS
Optional Information
- Notes
- 11 refs., 4 figs., 2 tabs.