搜索结果: 16-22 共查到“地质学 Cr”相关记录22条 . 查询时间(0.078 秒)
Direct oxygen measurements of Cr-rich spinel: Implications for spinel stoichiometry
Direct oxygen measurements Cr-rich spinel Implications spinel stoichiometry
2012/4/6
Theavailability ofa synthetic multilayercrystal and accurately calibrated oxide and silicate standards makeit possible to usethe electron microprobefor precisea analysis ofspinel. Arequirement ofthe a...
MgO—SiO2—Sr—O体系的亚固相相关系及有关含Cr^2＋端员矿物的热力学特征。
Centro de Tecnología de Recursos Minerales y Cerámica, Cno. Centenario y 506, CC 49 (1897) M.B. Gonnet Buenos Aires, Argentina. FAX 54-21-710075
Abstract: OH-Cr smectites were prepared with different...
Properties of Hydroxy-Al and -Cr Interlayers in Montmorillonite
Aluminum Chromium Interlayering Montmorillonite XPS
2011/12/29
In environments contaminated with Cr, the interlayers of expandable layer silicates may serve as sinks for this potentially toxic element. As a means of determining the potential for smectites to serv...
Identification of Noncrystalline (Fe,Cr)(OH)3 by Infrared Spectroscopy
Chromium hydroxide Goethite Infrared spectroscopy Iron hydroxide Noncrystalline Solid solution
2012/1/4
Iron-chromium hydroxides are important solid phases governing the aqueous concentrations of Cr(III) in soils and fly ashes. Although direct identification of noncrystalline (Fe,Cr)(OH)3 is difficult, ...
Adsorption of Cr(NH3)63+ and Cr(en)33+ on Clay Minerals and the Characterization of Chromium by X-Ray Photoelectron Spectroscopy
Adsorption Chlorite Chromium Complex ions Illite Kaolinite X-ray photoelectron spectroscopy
2012/2/9
The nature of Cr(NH3)63+ and Cr(en)33+(en = ethylenediamine) adsorbed on chlorite, illite, and kaolinite has been studied by X-ray photoelectron spectroscopy (XPS). The interaction of the chromium com...
Adsorbed Cr(III) on Chlorite, Illite, and Kaolinite: An X-ray Photoelectron Spectroscopic Study
Adsorption Binding energy Chlorite Chromium Illite Kaolinite XPS
2012/2/8
The adsorption of Cr(III) was studied at pH 1, 2, 3, 4, 6, 8, and 10 on chlorite and kaolinite and at pH 1, 2, 3, and 6 on illite. The amount of chromium adsorbed on chlorite varied from 3.1 × 10ͨ...