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同济大学环境科学与工程学院环境化学课件PART3-4 Oxidation and Reduction
同济大学环境科学与工程学院 环境化学 课件 PART3-4 Oxidation and Reduction
2013/12/12
同济大学环境科学与工程学院环境化学课件PART3-4 Oxidation and Reduction。
Conversion of Ferruginous Allophanes to Ferruginous Beidellites at 95 癈 Under Alkaline Conditions with Alternating Oxidation and Reduction
Allophane Beidellite Infrared Spectra Nontronite Vertisols X-ray Diffraction (XRD)
2011/12/22
Abstract: Ferruginous beidellites with Al:Fe atomic ratios up to 2.36 were obtained when solutions containing Al, Fe2+ and H4SiO4 were adjusted to pH 8.5 with Ca(OH)2 and incubated at 95 癈 in the pres...
Oxidation and Reduction of Structural Iron in Chlorite at 480癈
Chlorite Infrared spectroscopy Iron Mossbauer spectroscopy Oxidation Reduction
2012/2/7
An iron-rich chlorite, ripidolite, was oxidized by air-heating at 480?i.e., below the dehydroxylation temperature and subsequently reduced in hydrogen at the same temperature. On the basis of chemical...
Effect of Oxidation and Reduction on Potassium Exchange of Biotite
Oxidation Reduction Potassium Exchange Biotite
2012/2/15
The selectivity of K over Ca of Amelia biotite increased sharply upon oxidation by H2O2 at pH 6·0. This increase in K selectivity was only partially reversible upon reduction by Na2S2O4. Oxidation by ...
Iron Oxidation and Reduction Effects on Structural Hydroxyl and Layer Charge in Aqueous Suspensions of Micaceous Vermiculites
Iron Oxidation Structural Hydroxyl Layer Aqueous Suspensions Micaceous
2012/2/15
Four Na2S2O4-reduced Na-vermiculites, each with some trioctahedral mica interstratified, were oxidized with H2O2 at pH 6·5 and again reduced with Na2S2O4 in suspensions at pH 7·5–8·0. The layer charge...