Chinese Journal of Applied Chemistry ›› 1997, Vol. 0 ›› Issue (2): 110-112.
• Full Papers • Previous Articles Next Articles
Wei Yu, Liu Xiaolin, Zheng Xuezhong
Received:
Revised:
Published:
Online:
Abstract: γ-FeOOH crystals were grown from FeSO4 by the air oxidation of ferrous hydroxide suspension in the presence of EDTA, and then 100% spindle α-Fe2O3 particles were prepared by adding 0.0025 mol/L hydroxyethylidene diphosphonic acid(HEDP)at 90～95℃. The mean particle length is 150～180 nm and the axial ratio is 3.5～3.8. A series of experiments were carried out with HEDP concentrations ranging from 0.0015 to 0.003 mol/L. The effect of HEDP concentration on α-Fe2O3 morphology is discussed.
Key words: spindel α-Fe2O3, air oxidation, Fe(OH)2
Wei Yu, Liu Xiaolin, Zheng Xuezhong. Preparation of Non-polar Magnetic Powder 1.Direct Synthesis of Spindle α-Fe2O3 from FeSO4 by Air Oxidation[J]. Chinese Journal of Applied Chemistry, 1997, 0(2): 110-112.
0 / / Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: http://yyhx.ciac.jl.cn/EN/
http://yyhx.ciac.jl.cn/EN/Y1997/V0/I2/110
