Elsevier S & T

Chemistry of Tantalum and Niobium Fluoride Compounds

Agulyansky, Anatoly

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Table of contents
  • Cover
  • Contentsix
  • Prefacevii
  • Chapter 1. Introduction1
  • 1.1. General information on the applications of tantalum and niobium1
  • 1.2. Tantalum and niobium raw materials4
  • 1.3. Refining processes5
  • 1.4. Material science aspects8
  • Chapter 2. Synthesis of tantalum and niobium fluoride compounds11
  • 2.1. Aqueous solutions12
  • 2.2. Non-aqueous solutions23
  • 2.3. Interactions with TaF5 and NbF524
  • 2.4. Synthesis of oxyfluoride compounds using NbO2F and TaO2F26
  • 2.5. Hydrofluoride synthesis of niobium and tantalum compounds38
  • Chapter 3. Crystal Chemistry of Tantalum and Niobium Fluoride Compounds59
  • 3.1. Island-type structure compounds60
  • 3.2. Compounds with chain-type structures82
  • 3.3. Compounds with layered-type structures92
  • 3.4. Compounds with framework-type structures101
  • 3.5. Compounds with coordination-type structures109
  • 3.6 Crystal chemical classification116
  • Chapter 4. Tantalum and Niobium Complexes in fluoride solutions125
  • 4.1. Niobium-containing solutions125
  • 4.2. Tantalum-containing solutions130
  • Chapter 5. Tantalum and niobium complexes in fluoride melts135
  • 5.1. Preliminary notes135
  • 5.2. Melting diagrams137
  • 5.3. Physicochemical properties148
  • 5.4. Vibration spectroscopy of fluoride melts168
  • 5.5. Main conclusions191
  • Chapter 6. Thermal Properties and Decomposition of Tantalum- and Niobium-Containng Fluoride Compound195
  • 6.1. Impact of temperature on solid fluoride complexes195
  • 6.2. Melting processes200
  • 6.3. Thermal decomposition of oxyfluoroniobates202
  • 6.4. Gaseous components205
  • 6.5. Main conclusions215
  • Chapter 7. Ferroelectric Properties of Niobium and Tantalum Fluoride Compounds217
  • 7.1. General notes217
  • 7.2. Compounds derived from lithium metatantalate220
  • 7.3. Spontaneous polarization and non-linear optical effect in niobium and tantalum fluoride compoun223
  • 7.4. Piezoelectric, pyroelectric and related properties in M5Nb3OF18 compounds234
  • Chapter 8. Fluorine Chemistry in the Processing of Tantalum and Niobium253
  • 8.1. General notes253
  • 8.2. Raw material decomposition256
  • 8.3. Liquid-liquid extraction267
  • 8.4. Preparation of tantalum and niobium oxides292
  • 8.5. K-salt production316
  • 8.6. The production of tantalum and niobium metals by reduction of fluoride melts320
  • Chapter 9. Main principals of the chemistry of tantalum and niobium fluoride compounds339
  • Appendix341
  • X - Ray powder diffraction data of some important tantalum and niobium fluoride compounds (CuKα rad341
  • References355
  • Subject Index383
  • Formula Index389
Book details
  • Vendor Elsevier S & T
  • SKU 9780444516046
  • ISBN-13 9780080529028
  • Author Agulyansky, Anatoly
  • Category Science
  • Subject Organic

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Electronic, optical, mechanical and medical appliances are just a few examples of modern applications that use tantalum and niobium. In Chemistry of Tantalum and Niobium Fluoride Compounds, the author draws on thirty years' experience to produce the first ever monograph to systemize and summarize the data available on tantalum and niobium fluoride compounds. This comprehensive reference source offers a rich variety of study methodology and is invaluable to researchers examining the chemistry of fluorides, as well as teachers and students in chemistry and metallurgy.

* Collects the latest research on the chemistry of complex fluorides and oxyfluorides of Tantalum and Niobium.
* Covers both theory and application of Tantalum and Niobium Fluoride Chemistry
* Is suitable for tantalum and niobium producers, researchers studying the chemistry of fluorides, as well as teachers and students in chemistry and metallurgy