studied by two probe direct current electrical conductivity measurements under the atmospheres of static air and dynamic dry nitrogen. The products at each decomposition stage were determined by Mossbauer spectroscopy, infrared spectroscopy, X-ray powder diffraction and gas chromatography. The change in the oxidation state of the iron ion is clearly followed through the course of decomposition via
摘要 通过两探针直流电导率测量在静态空气气氛下研究了四水
琥珀酸亚铁FeC 4 H 4 O 4 ·4H 2 O和二
水苹果酸亚
铁FeC 4 H 4 O 5 ·2H 2 O的热分解。和动态干氮。通过穆斯堡尔光谱、红外光谱、X 射线粉末衍射和气相色谱法测定每个分解阶段的产物。通过异构体位移和四极分裂的变化,在分解过程中清楚地跟踪了
铁离子氧化态的变化。还讨论了中间体如 FeO、Fe 3 O 4 、γ-Fe 2 O 3 和α-Fe 2 O 3 的形成,并将 Mossbauer 测量的结果与这些二
羧酸盐的热分析相关联。