Depolymerization of polysilicic acid by tiron

Shuqin Bai, Yoshihiro Okaue, Takushi Yokoyama

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

As a preliminary experiment for the development of an effective silica scale inhibitor at geothermal power plants, the effect of tiron, a ligand to monosilicic acid, on the polymerization of silicic acid was investigated by gel chromatographic method. The experiments were carried out at Si concentration of 400 ppm (14 μM) and at pH 8 where are a similar condition to geothermal water. The tiron concentration was varied (0-50 μM). At 30 μM of tiron, the polymerization of silicic acid occurred rapidly within first 1 h in spite of the presence of tiron, however, polysilicic acids were depolymerized by tiron. The depolymerization mechanism of polysilicic acids was discussed based on zeta potentials for silica gel particles in the absence and presence of tiron.

本文言語英語
ページ(範囲)1795-1799
ページ数5
ジャーナルPolymer Degradation and Stability
94
10
DOI
出版ステータス出版済み - 10 2009

All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 材料力学
  • ポリマーおよびプラスチック
  • 材料化学

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