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由于选择性较高以及可用碘量法测定,利用碘酸盐作为沉淀剂早就引起人们的注意。碘酸钾可用来测定铅、钡、钙、银、和铊等元素。碱金属的碘酸盐可与很多高价元素如钛、锆、铈(IV)、钍、生成沉淀,均可用于分离及测定。但是关于这些碘酸盐沉淀的组成,长期以来一直有所争论。和认为钍的碘酸盐沉淀组成为4Th(IO_3)_4·KIO_3·18H_2O。而 Moeller和Fritz则认为组成为Th(IO_3)_4。和对锆与碘酸盐的反应的系统研究表明,在不同条件下得到沉淀的组成是
Due to the higher selectivity and available iodometric method, the use of iodate as a precipitant has long been of concern. Potassium iodate can be used to determine lead, barium, calcium, silver, and thallium and other elements. Alkali metal iodate with a lot of high-priced elements such as titanium, zirconium, cerium (IV), thorium, precipitation, can be used for separation and determination. However, the composition of these iodate precipitates has long been debated. And consider the thorium iodate precipitation composition 4Th (IO_3) _4 · KIO_3 · 18H_2O. While Moeller and Fritz consider the composition Th (IO_3) _4. Systematic studies on the reaction of zirconium with iodate show that the composition obtained under different conditions is