Published February 1999
| Version v1
Journal article
Physicochemical properties of the V2O5-H3PO4-SiO2 system
- 1. Gosnauchnyj Tsentr RF NIFKhI im. L.Ya. Karpova, Moscow (Russian Federation)
Description
Influence on component ratio on phase composition and dispersion of solid products formed by mixing vanadium(5) oxide, phosphoric acid and silica gel with subsequent drying and thermal treatment, has been studied by the methods of NMR- and ESR-spectroscopy, chemical, thermal and X-ray diffraction analyses. It has been ascertained that mixing of the above reagents gives rise to formation of coarse-dispersion vanadium(5) phosphate dihydrate. Physicochemical properties of solid products are largely determined by their phase composition and PO:VO ratio, first of all
Abstract (Russian)
Методами ЯМР- и ЭПР-спектроскопии, химического, термического и рентгенофазового анализа исследовано влияние соотношения компонентов на фазовый состав и дисперсность твердых продуктов, образующихся при смешении оксида ванадия(5), фосфорной кислоты и силикагеля с последующей сушкой и термообработкой. Установлено, что при смешении указанных реагентов образуется грубодисперсный дигидрат фосфата ванадия(5). Физико-химические свойства твердых продуктов в основном определяются их фазовым составом и в первую очередь соотношением PO:VOAdditional details
Additional titles
- Original title (Russian)
- Физико-химические свойства системы В
Publishing Information
- Journal Title
- Zhurnal Neorganicheskoj Khimii
- Journal Volume
- 44
- Journal Issue
- 2
- Journal Page Range
- p. 275-280
- ISSN
- 0044-457X
- CODEN
- ZNOKAQ
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 31015708
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CHEMICAL COMPOSITION; CHEMICAL REACTIONS; CONCENTRATION RATIO; DISPERSIONS; DRYING; ELECTRON SPIN RESONANCE; HEAT TREATMENTS; NMR SPECTRA; PHASE DIAGRAMS; PHASE STUDIES; PHOSPHORIC ACID; SILICA GEL; THERMAL ANALYSIS; VANADIUM OXIDES
- Descriptors DEC
- ADSORBENTS; CHALCOGENIDES; DIAGRAMS; HYDROGEN COMPOUNDS; INFORMATION; INORGANIC ACIDS; INORGANIC COMPOUNDS; MAGNETIC RESONANCE; OXIDES; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; RESONANCE; SPECTRA; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS
Optional Information
- Notes
- 19 refs., 5 figs.