Effects of Pressure on the Chemical Properties of Solid Surface, VIII. The Surface Acidity of the Compressed Magnesium Sulfate
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概要
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In order to clarify the mechanism of the acidity change due to compression, magnesium sulfate was compressed under various pressures ranging from 0 to 12000 kg/cm<SUP>2</SUP>, the surface acidities, the powder X-ray diffraction patterns, the DTA data, and infrared spectra of the compressed samples were thus obtained. According to the experimental results, the surface acidity of the sample did not vary upon the compression of low pressures (0–6000 kg/cm<SUP>2</SUP>), and a further increase in the compacting pressure resulted in an increase in the surface acidity. From the results of the X-ray diffraction studies, infrared, and far infrared absorption studies and the DTA studies, the relations between the acidity change and the structural changes of the samples were discussed. As a result of this work, the observed acidity change was explained in terms of the distortion of the structural unit of magnesium sulfate.
- 公益社団法人 日本化学会の論文
著者
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Ogino Yoshisada
Department of Chemical Engineering, Faculty of Engineering, Tohoku University
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Kawakami Takeshi
Department of Chemical Engineering, Faculty of Engineering, Tohoku University
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Banba Hiroyoshi
Department of Chemical Engineering, Faculty of Engineering, Tohoku University
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