碳酸亚铁与碳酸氢亚铁混合物的分析测定方法

发布时间：2018-08-02 12:19

【摘要】：正碳酸亚铁由于制备工艺的特殊,往往含有碳酸氢亚铁,所以碳酸亚铁的含量一般不以FeCO3来表示,而用Fe~(2+)的含量来表示。纯碳酸亚铁中Fe~(2+)的理论质量分数为48.2%,纯碳酸氢亚铁中Fe~(2+)的理论质量分数仅为31.4%,市售碳酸亚铁的Fe~(2+)质量分数一般在38%~42%之间。因此如何分别测定碳酸亚铁和碳酸氢亚铁的含量至关重要。由于碳酸亚铁中的碳为常量元素,用红外吸收光谱法[1]或国
[Abstract]:Due to the special preparation process, ferrous carbonate often contains ferrous bicarbonate, so the content of ferrous carbonate is not usually expressed by FeCO3, but by the content of Fe2. The theoretical mass fraction of Fe ~ (2) in pure ferrous carbonate is 48.2%, the theoretical mass fraction of Fe ~ (2) in pure ferrous carbonate is only 31.4%, and the mass fraction of Fe ~ (2) in commercial ferrous carbonate is generally between 38% and 42%. Therefore, it is very important to determine the content of ferrous carbonate and ferrous bicarbonate respectively. Since the carbon in ferrous carbonate is a constant element, the infrared absorption spectrometry [1] o
【作者单位】：上海拱极化学有限公司;
【分类号】：TQ138.11;O652

【相似文献】