Study of the Polymerization of Silicic Acid Adsorbed on Iron(III) Hydroxide by Trimethylsilylation-Gas Chromatography
作者:Takushi Yokoyama、Tsugio Shimono、Toshikazu Tarutani
DOI:10.1246/bcsj.57.2315
日期:1984.8
Polymerization of silicic acid adsorbed on iron (III) hydroxide from dilute monosilicic acid solutions in the concentration range 5–40ppm (SiO2) 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 (Si2O76−), linear trimer (Si2O108−)
在 6-12 的 pH 值范围内研究了从浓度范围为 5-40 ppm (SiO2) 的稀单硅酸溶液中吸附在氢氧化铁 (III) 上的硅酸的聚合反应。在氢氧化物上形成的硅酸物质被三甲基甲硅烷基化,并且三甲基甲硅烷基衍生物通过气相色谱检测。单硅酸吸附聚合,二聚体 (Si2O76-)、线性三聚体 (Si2O108-) 和四聚体 (Si4O1310-) 以及环状四聚体 (Si4O128-) 被发现为聚合物种类。