STUDY OF THE POLYMERIZATION OF SILICIC ACID ADSORBED ON IRON(III) HYDROXIDE BY TRIMETHYLSILYLATION-GAS CHROMATOGRAPHY.

Takushi Yokoyama, Tsugio Shimono, Toshikazu Tarutani

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Abstract

Polymerization of silicic acid adsorbed on iron (III) hydroxide from dilute monosilicic acid solutions in the concentration range 5-40 ppm (SiO//2) 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//2O//7**6** minus ), linear trimer (Si//3O//1//0**8** minus ) and tetramer (Si//4O//1//3**1**0** minus ), and cyclic tetramer (Si//4O//1//2**8** minus ) were found as polymeric species.

Original languageEnglish
Pages (from-to)2315-2316
Number of pages2
JournalBulletin of the Chemical Society of Japan
Volume57
Issue number8
DOIs
Publication statusPublished - Jan 1 1984

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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