在锆材的研究与生产工艺过程中,常需测定中间产品氟锆酸钾中的钾,但在大量锆与氟存在下测定高含量钾如:亚硝酸钴盐及四苯硼酸钠等方法均需事先分离干扰元素,分离手续实为烦琐。本文根据氟硼酸与钾韵沉淀反应(生成KBF_4),研究了以通常使用的氟硼酸为钾的沉淀剂,以重量法测定钾的方法。 In the process of research and production of zirconium, it is often necessary to determine the potassium in the intermediate potassium fluoride zirconate, but in the presence of a large amount of zirconium and fluorine, high potassium content such as cobalt nitrite and sodium tetraphenylborate Disturbed elements need to be separated in advance, separation procedures are cumbersome. In this paper, according to the reaction of fluoboric acid and potassium phosphate (KBF_4), the method of gravimetric determination of potassium with the commonly used boric acid fluoroborate precipitant was studied.