Volume 3
Buch, Englisch, 368 Seiten, Format (B × H): 152 mm x 229 mm, Gewicht: 533 g
ISBN: 978-1-4612-9031-5
Verlag: Springer US
The physicist Kamerlingh Onnes, who was the first to liquify helium (1908), had written on the walls of his laboratory in Leiden: "From measur ing to knowing." As true as this is at very low temperatures, it is just as applicable at the high temperatures of molten salts. Only on the basis of exact measurements by a plethora of experimental methods can any real understanding be reached of both classes of liquids. In both temperature ranges experimental difficulties are much greater than those encountered around ambient temperature. Molten salts often present a formidable challenge to the experimen talist, for example, because of corrosion and other materials problems. Applications of molten salts were for a long time based on empirical knowledge alone. This was true for the first application of molten salts in 1807, when Davy obtained sodium and potassium by electrolysis of the molten hydroxides. For 100 years the winning of aluminum has been based on the very nearly simultaneous invention by Hall and Heroult (1886) of the electrolysis of molten cryolite. The process, though essentially unchanged, has since been perfected owing to an improvement in our understanding of what actually happens, based on difficult measurements ofthe many variables. However, even now there are gaps in our knowledge.
Zielgruppe
Research
Autoren/Hrsg.
Weitere Infos & Material
1. Introduction.- References.- 2. Actinides.- 1. Introduction.- 2. Special Enclosures Required for Actinides.- 3. Materials Problems.- 4. Microtechniques.- 5. Techniques for Purification of Multigram Quantities of Actinides and Their Salts.- 6. Metal Preparation and Purification.- 7. Physical Properties Measurements.- 8. Absorption Spectra.- 9. Electrochemistry.- 10. Summary.- References.- 3. Cryolite Systems.- 1. Introduction.- 2. Container Materials.- 3. Preparative Techniques.- 4. The Study of Thermodynamic and Physicochemical Properties.- 5. Electrodes in Molten Cryolite.- 6. Spectroscopy in Molten Cryolite.- 7. Miscellaneous Techniques.- 8. Conclusion.- References.- 4. Reference Electrodes for Molten Electrolytes.- 1. Introduction.- 2. Theoretical Principles.- 3. Principles of Reference Electrode Construction and Application.- 4. Description of Reference Electrodes.- References.- 5. Neutron Diffraction.- 1. Introduction.- 2. Molten Salt Structure.- 3. Neutron or X-Ray Diffraction.- 4. Samples Amenable to Neutron Diffraction Study.- 5. Sample Preparation.- 6. Sample Containers.- 7. Furnaces.- 8. Neutron Beam Facilities.- 9. Data Analysis.- 10. Melts Studied Using Neutron Diffraction.- 11. Summary.- References.- 6. Dry Boxes and Inert Atmosphere Techniques.- 1. Introduction.- 2. Equipment.- 3. Operation.- 4. Common Operations Conducted inside Dry Boxes.- References.
