Iron Oxides in the Laboratory: Preparation and Characterization
Iron Oxides play an important role in numerous disciplines. Since the publication of the first edition, there has been a surge of interest in synthetic fine to ultrafine iron oxides in a wide range of scientific and technological disciplines, especially in mineralogy, geosciences and environmental science and in various branches of technology. As before, the main aim of the second edition is to present reliable, well-tested, up-to-date methods of synthesizing pure iron oxides. The section on monodispersed particles, presently of great interest to industry, has been expanded. Furthermore the methods of characterization have been focused on their relevance to iron oxides. The well tried syntheses have been retained and some new ones have been incorporated.
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General Preparative Techniques
Methods of Characterization
Coating of Si02 Sand Quartz Cristobalite with Iron
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2-line ferrihydrite absorption acid adsorbed akaganeite Al-substituted alkaline anions aqueous bands beaker Bigham cations chloride chroma Clays Clay coated color Cornell cristobalite dehydration Description The method Dissolve distilled water electron micrograph Fe oxides Fe2+ FeCl2 solution FeCl3 FeOOH feroxyhyte forced hydrolysis formation Giovanoli goethite goethite and hematite green rust heating hematite hues hydrolysis hydroxides increasing ions iron oxides jacobsite Kandori lepidocrocite lower maghemite magnetic magnetite Matijevic minerals monodispersed morphology Mossbauer spectroscopy Mossbauer spectrum Munsell Murad NaOH nucleation obtained octahedra oxalate particles permission phase Plate polydomainic poorly crystalline powder diffraction precipitate prepared presence Product Description range ratio sample sand Scheinost Schulze Schwert Schwertmann shown in Fig silicate soils soluble spectra spectroscopy Stanjek structure substitution sulfate surface area suspension synthesis temperature tion transformation twice distilled water unit cell wash X-ray diffraction X-ray diffractogram XRD peaks yellow
Page 170 - Hamada and E. Matijevic, Ferric hydrous oxide sols. IV. Preparation of uniform cubic hematite particles by hydrolysis of ferric chloride in alcohol-water solutions, J. Colloid Interface Sci., 84 (1981) 274-277; (b) S.
Page 174 - Murad, E., and Schwertmann, U. (1986) Influence of Al substitution and crystal size on the roomtemperature Mossbauer spectrum of hematite, Clay.