高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (10): 1575.

• 研究简报 • 上一篇    下一篇

氢氧化铝镁正电溶胶稳定性研究

于跃芹1, 武玉民1, 侯万国2, 张春光2, 王果庭2   

  1. 1. 山东轻工业学院化工系, 济南 250100;
    2. 山东大学胶体与界面化学教育部重点实验室, 济南 250100
  • 收稿日期:1999-08-11 出版日期:2000-10-24 发布日期:2000-10-24
  • 通讯作者: 于跃芹(1969年出生),女,硕士,讲师,从事胶体分散体系研究.
  • 基金资助:

    山东大学胶体与界面化学教育部重点实验室资助

Studies on the Stability of Aluminium Magnesium Hydroxide Positive Sol

YU Yue-Qin1, WU Yu-Min1, HOU Wan-Guo2, ZHANG Chun-Guang2, WANG Guo-Ting2   

  1. 1. Department of Chemical Engineering, Shandong Institute of Light Industry, Jinan 250100, China;
    2. Key Laboratoryf or Colloid and Interface Chemistryof Education Ministry, Shandong University, Jinan 250100, China
  • Received:1999-08-11 Online:2000-10-24 Published:2000-10-24

PDF (PC)

被引次数

28

关键词: 氢氧化铝镁, 正电溶胶, 聚沉, 稳定性

Abstract: The potential equation in the positive sol of aluminium magnesium hydroxide was deduced according to the model of constant surface charge density, and the potential curves in the NaBr solution were obtained. The studies of coagulation kinetics showed that the coagulation process of monovalent anions may be divided into a rapid and slow coagulation. The efficiencies in causing coagulation for monovalent anions followed the order Br->I->NO3->Cl-, which didn't correspond to the lyotropic series. The coagulation value of polyanion had a discrepancy with Shulze-Hardy law. The higher the cation valent was, the stronger the stabilization of sol was.

Key words: Aluminium magnesium hydroxide, Positive sol, Coagulation, Stability

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