论文部分内容阅读
对于含氧化钴量不太高的样品,一般都采用亚硝基红盐比色法测定,而对氧化钴量较高的样品,该方法准确度欠佳。为此,我们曾采用乙二胺四乙酸(EDTA)络合、醋酸锌回滴容量法测定含氧化钴量较高样品,但数据重复性较差。最后,我们选用了外文资料《应用无机分析》一书的分析方法。根据我们样品情况,改变了它的分解样品方法,采用了它们的沉淀方法,以α-亚硝基-β-萘酚做沉淀剂,生成亚硝基-β-萘酚钴,烘干灼烧称至(?)重。
For samples containing less cobalt oxide, nitroso- red colorimetry is generally used, whereas for samples with higher cobalt oxide, this method is less accurate. To this end, we have used ethylenediaminetetraacetic acid (EDTA) complexation, zinc acetate back drop volumetric method for the determination of high cobalt oxide samples, but the data less reproducible. Finally, we use the method of analyzing foreign material “Applied Inorganic Analysis”. According to our sample situation, it changed the method of decomposition samples, using their precipitation method to α-nitroso-β-naphthol as a precipitating agent, generating nitroso-β-naphthol cobalt, drying burning Weighs to (?) Heavy.