高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (11): 1095.

• 论文 •    下一篇

固相配位化学反应研究(ⅩⅩⅤ)——草酸高铁与路易氏间碱的固相反应

袁进华1, 忻新泉1, 戴安邦1, 张毓昌2, 黄建平2   

  1. 1. 南京大学配位化学研究所;
    2. 南京大学物理系
  • 收稿日期:1987-05-13 出版日期:1988-11-24 发布日期:1988-11-24
  • 通讯作者: 忻新泉
  • 基金资助:

    中国科学院基金;联合国教科文组织资助项目

Solid State Reaction of Coordination Compounds (XXV) ——The Solid State Reaction of Iron (Ⅲ) Oxalate and Lewis Base in Hydrogen and Helium Atmosphere

Yuan Jinhua1, Xin Xinquan1, Dai Anbang1, Zhang Yuchang2, Huang Jianping2   

  1. Nanjing University, Nanjing
  • Received:1987-05-13 Online:1988-11-24 Published:1988-11-24

摘要: 用气相色谱法研究了草酸铁(Ⅲ)与路易氏碱在氢气氛和氦气氛中的固相反应。结果表明草酸铁与氢氧化钠在室温下明显发生固相反应,其产物随温度升高而变化。同时发现α-Fe对草酸钠有催化分解作用,与四硫化钾低于220°C时发生固相反应,生成KFeS2,但只有1/4草酸铁参加了固相反应,反应不完全,对固相反应的机制及反应气氛的影响也进行了探讨。

关键词: 固相反应, 草酸铁, 气相色谱, 路易氏碱

Abstract: By use of non-isothermal technique in hydrogen and helium atmosphere the solid state reaction of iron(Ⅲ) oxalate and Lewis base was studied by gas chroma-tography accompanied by IR, XRDand Mossbauer spectroscopy. The results show that the solid state reaction of iron oxalate and potassium tetrasulfide starts at 200℃ and ends at 300℃, releasing CO2 and forming KFeS2 which is confirmed by Mossbauer spectra and XRD. The solid state reaction of iron (Ⅲ) oxalate and sodium hydroxide takes place at room temperature, which turns the reactant color to brown, resulting in the formation of alpha-Fe2O3 and Fe(OH)3, with the rising of temperature the amount of alpha Fe2O3 is increased due to the deaquation of Fe(OH)3, no CO2 is released around 180℃ indicating the entirely dissappearance of iron (Ⅲ) oxalate, which confirms the completion of the solid state reaction.

Key words: Solid state reaction, Iron(Ⅲ) oxalate, Gas chromatography

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