【摘要】：正碳酸亞鐵由于制備工藝的特殊,往往含有碳酸氫亞鐵,所以碳酸亞鐵的含量一般不以FeCO3來表示,而用Fe~(2+)的含量來表示。純碳酸亞鐵中Fe~(2+)的理論質(zhì)量分數(shù)為48.2%,純碳酸氫亞鐵中Fe~(2+)的理論質(zhì)量分數(shù)僅為31.4%,市售碳酸亞鐵的Fe~(2+)質(zhì)量分數(shù)一般在38%~42%之間。因此如何分別測定碳酸亞鐵和碳酸氫亞鐵的含量至關(guān)重要。由于碳酸亞鐵中的碳為常量元素,用紅外吸收光譜法[1]或國
[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
【作者單位】： 上海拱極化學(xué)有限公司;
【分類號】：TQ138.11;O652

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