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首页> 外文期刊>Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems >THERMAL DECOMPOSITION OF CEROUS AMMONIUM NITRATE TETRAHYDRATE STUDIED WITH TEMPERATURE-DEPENDENT X-RAY POWDER DIFFRACTION AND THERMAL ANALYSIS
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THERMAL DECOMPOSITION OF CEROUS AMMONIUM NITRATE TETRAHYDRATE STUDIED WITH TEMPERATURE-DEPENDENT X-RAY POWDER DIFFRACTION AND THERMAL ANALYSIS

机译:随温度变化的X射线粉末衍射研究硝酸亚铁四水合物的热分解及热分析

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The thermal decomposition process of Ce(NH4)(2)(NO3)(5) . 4H(2)O has been determined by means of temperature-dependent Xray diffraction and TG-DSC. The transformations are particle-size dependent and have been studied in nitrogen and vacuum. The occurrence of Ce(NH4)(2)(NO3)(5) . 3H(2)O, Ce(NH4)(2)(NO3)(5) . 2H(2)O, Ce(NH4)(2)(NO3)(5), Ce-2(NH4)(3)(NO3)(9) or a mixture of these last two phases, as well as the formation of amorphous NH4NO3 have been demonstrated. The diffraction powder patterns have been indexed, a linear variation of the chemical-formula-unit equivalent volumes V-eq with the number of water molecules has been derived from the unit-cell volumes. (C) 1997 Elsevier Science B.V. [References: 22]
机译:Ce(NH4)(2)(NO3)(5)的热分解过程。已通过依赖于温度的X射线衍射和TG-DSC测定了4H(2)O。该转变取决于粒度,并且已经在氮气和真空中进行了研究。 Ce(NH4)(2)(NO3)(5)的出现。 3H(2)O,Ce(NH4)(2)(NO3)(5)。 2H(2)O,Ce(NH4)(2)(NO3)(5),Ce-2(NH4)(3)(NO3)(9)或这最后两个阶段的混合物,以及已经证明了无定形NH 4 NO 3。已经对衍射粉末图案进行了索引,从单位晶胞体积中得出了化学公式单位当量体积V-eq与水分子数量的线性变化。 (C)1997 Elsevier Science B.V. [参考:22]

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