STRUCTURAL-PROPERTIES OF PRECIPITATES FORMED BY HYDROLYSIS OF FE(3+) IONS IN FE2(SO4)3 SOLUTIONS

被引：46

作者：

MUSIC, S

OREHOVEC, Z

POPOVIC, S

CZAKONAGY, J

机构：

[1] UNIV ZAGREB, FAC SCI, DEPT PHYS, ZAGREB 41001, CROATIA

[2] EOTVOS LORAND UNIV, DEPT NUCL CHEM, H-1518 BUDAPEST, HUNGARY

来源：

JOURNAL OF MATERIALS SCIENCE | 1994年 / 29卷 / 08期

关键词：

D O I：

10.1007/BF01154672

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structural properties of the solid phase, formed by the hydrolysis of Fe3+ ions in Fe2(SO4)3 solutions at 90 or 120-degrees-C, were investigated using X-ray diffraction, Fe-57 Mossbauer spectroscopy, Fourier transform infrared spectroscopy (FT-IR) and transmission electron microscopy. The concentration regions of Fe2(SO4)3 were determined for the precipitation of goethite, alpha-FeOOH, or hydronium jarosite, H3OFe3(OH)6(SO4)2, as a single phase. Superparamagnetic behaviour of alpha-FeOOH particles was observed. Hydrolysis of Fe3+ ions in 0.1 m Fe2(SO4)3 Solutions at 120-degrees-C produced H3OFe3(OH)6(SO4)2 and basic sulphate, Fe4(OH)10SO4. The interpretation of Fe-57 Mossbauer and FT IR spectra is given.

引用

页码：1991 / 1998

页数：8

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