Study of the polymerization of silicic acid adsorbed on iron(III) hydroxide by trimethylsilylation-gas chromatography.
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概要
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Polymerization of silicic acid adsorbed on iron (III) hydroxide from dilute monosilicic acid solutions in the concentration range 5–40ppm (SiO<SUB>2</SUB>) was studied over the pH range 6–12. Silicic acid species formed on the hydroxide were trimethylsilylated and trimethylsilyl derivatives were detected by gas chromatography. Monosilicic acid adsorbed polymerized, and dimer (Si<SUB>2</SUB>O<SUB>7</SUB><SUP>6−</SUP>), linear trimer (Si<SUB>2</SUB>O<SUB>10</SUB><SUP>8−</SUP>) and tetramer (Si<SUB>4</SUB>O<SUB>13</SUB><SUP>10−</SUP>), and cyclic tetramer (Si<SUB>4</SUB>O<SUB>12</SUB><SUP>8−</SUP>) were found as polymeric species.
- 公益社団法人 日本化学会の論文
著者
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Yokoyama Takushi
Department Of Chemistry Faculty Of Science
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Tarutani Toshikazu
Department of Chemistry, Faculty of Science, Kyushu University
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Shimono Tsugio
Department of Chemistry, Faculty of Science, Kyushu University 33
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