The Effect of Magnetic Field on ξ Potential of Ferric Hydroxide Colloid

Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (1): 97.

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The Effect of Magnetic Field on ξ Potential of Ferric Hydroxide Colloid

SHEN He-bai¹, ZHU Chuan-zheng¹, TIAN Su-lian¹, HUANG Zi-qiang²

1. Department of Chemistry, East China Normal University, Shanghai, 200062;
2. Department of Chemical Engineering, Shanghai Second Polytechnic University

Received:1990-10-20 Online:1992-01-24 Published:1992-01-24

Abstract

Abstract: In this paper, the effect of magnetic field on ζ potential of ferric hydroxide colloid is studied.The experiment result shows that there is a pronounced change in ζ potential, electric conductivity and coagulation value of the colloid when it is magnetized.The magnitude of this effect is found to be connected with the intensity of magnetic field, the time for the colloid to be magnetized and the concentration of the colloid.In the meantime, we have observed the difference before and-after the magnetization of the colloid under an electron microscope.The results of our experiment are also discussed.

Key words: &zeta, Potential, Magnetic field effect, Ferric hydroxide colloid

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SHEN He-bai, ZHU Chuan-zheng, TIAN Su-lian, HUANG Zi-qiang. The Effect of Magnetic Field on ξ Potential of Ferric Hydroxide Colloid[J]. Chem. J. Chinese Universities, 1992, 13(1): 97.

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The Effect of Magnetic Field on ξ Potential of Ferric Hydroxide Colloid

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