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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KFeS_2,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。
The solid-phase reaction of iron (III) oxalate and Lewis base in a hydrogen atmosphere and a helium atmosphere was studied by gas chromatography. The results showed that iron oxalate and sodium hydroxide obviously solid-state reaction at room temperature, the product changes with temperature. At the same time, α-Fe was found to catalyze the decomposition of sodium oxalate, and solid-state reaction with potassium tetratulfide below 220 ° C resulted in the formation of KFeS 2, but only ¼ oxalate participated in the solid-phase reaction and the reaction was incomplete. The reaction mechanism and the influence of the reaction atmosphere are also discussed.