PROPERTIES OF PRECIPITATES FORMED BY HYDROLYSIS OF FE3+ IONS IN NH4FE(SO4)2 SOLUTIONS

被引：17

作者：

MUSIC, S ^{[1
]}

POPOVIC, S ^{[1
]}

OREHOVEC, Z ^{[1
]}

CZAKONAGY, I ^{[1
]}

机构：

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

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1993年 / 160卷 / 02期

关键词：

D O I：

10.1006/jcis.1993.1420

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The properties of the solid phases formed by the hydrolysis of Fe3+ ions in NH4Fe(SO4)2 solutions at 90 or 120°C were investigated using X-ray diffraction, 57Fe Mössbauer spectroscopy, and Fourier transform IR spectroscopy. The concentration regions of NH4Fe(SO4)2 were determined for the precipitation of goethite, α-FeOOH or ammonium jarosite, NH4Fe3(SO4)2. Superparamagnetic behavior of goethite particles was observed. Mössbauer parameters of ammonium jarosites, precipitated under various experimental conditions, were very similar. The interpretations of the Mössbauer and FT-IR spectra of the precipitates are given. © 1993 by Academic Press, Inc.

引用

页码：479 / 482

页数：4

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