论文部分内容阅读
应用重量分析的方法测定铀在大多数情况下需要预先除去这些或那些元素,故需时很长。奈什库齐乌发表了应用六氨合钴硝酸盐[Co(NH_3)_6](NO_3)_3使铀沉淀为[UO_2(Co_3)_3(H_2O)_3]·2[Co(NH_3)_6]NO_3化合物的方法。这个化合物含有25.05%U、12.43%Co、21.5%NH_3和2.9%硝态氮(分析证明),它是在向铀酰的碳酸盐溶液中加入[Co(NH_3)_6](NO_3)_3饱和溶液时获得的。沉出来的沉淀用玻璃坩埚滤出,首先用100毫升中含有0.2克沉淀剂的13%乙醇洗滌,然后,
Determination of uranium by means of gravimetric analysis in most cases requires the pre-removal of these or those elements and therefore takes a long time. Nišu Cuzau published a report on the application of hexamminecobalt nitrate [Co (NH_3) _6] (NO_3) _3 to precipitate uranium as [UO_2 (Co_3) _3 (H_2O) _3] · 2 [Co Compound method. This compound contains 25.05% U, 12.43% Co, 21.5% NH 3 and 2.9% nitrate (proved by analysis), which is obtained by adding [Co (NH 3) 6] (NO 3) 3 to uranyl carbonate Solution. The precipitated precipitate was filtered off with a glass crucible, washed first with 100 ml of 13% ethanol containing 0.2 g of precipitant, and then,