均分散胶体的研究 III. 均分散Fe2O3粒子的制备

doi:10.3866/PKU.WHXB19910612

Acta Phys. -Chim. Sin. ›› 1991, Vol. 7 ›› Issue (06): 699-702.doi: 10.3866/PKU.WHXB19910612

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Study on Monodispersed Colloid III. Preparation of Monodispersed Particles of Fe₂O₃

Wang Guang-Xin; Chen Zong-Qi; Zhang Yu-Ling; Yin Shi-Gang

Department of Applied Chemistry, Qingdao Institute of Chemical Technology, Qingdao 266042

Received:1990-05-09 Revised:1990-10-28 Published:1991-12-15
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Abstract

Abstract: Spindal, star-shaped and bipyramidal monodispersed particles of Fe_2O_3 were prepared from solutions of Fe(NO_3)_3 by using the simplified procedures under general experimental conditions.The concentration and pH domains for the preparation of these monodispersed systems have been given. One of the important factors which affect the shape of pricipited particles formed at elevated temperature is pH value in the initial solution. The transformation of particles in various shapes were observed by using an electron microscope. The obtained results will be helpfull to preparation in a large scale and practical application of the monodispersed systems.

Key words: Fe₂O₃, Monodispersed particle, Preparation

Wang Guang-Xin; Chen Zong-Qi; Zhang Yu-Ling; Yin Shi-Gang. Study on Monodispersed Colloid III. Preparation of Monodispersed Particles of Fe₂O₃[J]. Acta Phys. -Chim. Sin. 1991, 7(06), 699-702. doi: 10.3866/PKU.WHXB19910612

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Study on Monodispersed Colloid III. Preparation of Monodispersed Particles of Fe₂O₃

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Study on Monodispersed Colloid III. Preparation of Monodispersed Particles of Fe₂O₃