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首页> 外文期刊>Journal of Materials Science >EFFECT OF SULFATE IONS ON THE FORMATION AND PHYSICO-CHEMICAL PROPERTIES OF FERRIC OXIDE HYDROXIDES PREPARED BY A HOMOGENEOUS PRECIPITATION METHOD .1.
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EFFECT OF SULFATE IONS ON THE FORMATION AND PHYSICO-CHEMICAL PROPERTIES OF FERRIC OXIDE HYDROXIDES PREPARED BY A HOMOGENEOUS PRECIPITATION METHOD .1.

机译:均相沉淀法制得的硫酸根离子对氢氧化铁氢氧化物的形成和理化性质的影响1。

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The effects of sulfate ions on the formation and physico-chemical properties of ferric oxide hydroxides were studied using various techniques. Samples prepared from 0.1 M Fe(NO3)(3) solution without sulfate ions contain mixtures of goethite and hematite, whereas basic sulfates of varying composition were formed from solutions containing sulfate: iron [III] ratio greater than and equal to one. Goethite samples of very narrow particle size range, spherical shape, microporous nature, high surface area, high true density and low packing density and surface acidity, which are very necessary for good catalysts and ferrite making, were obtained at low sulfate: iron [III] ratios (0.25: 0.5). [References: 33]
机译:使用各种技术研究了硫酸根离子对三氧化二铁氢氧化物的形成和理化性质的影响。由不含硫酸根离子的0.1 M Fe(NO3)(3)溶液制备的样品包含针铁矿和赤铁矿的混合物,而组成不同的碱性硫酸盐则由硫酸盐:铁[III]比大于或等于1的溶液形成。在低硫酸盐下,铁[III]获得了非常窄的粒径范围,球形,微孔性质,高表面积,高真实密度,低堆积密度和表面酸度的针铁矿样品,这对于良好的催化剂和铁素体制造是非常必要的。比率(0.25:0.5)。 [参考:33]

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