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编辑同志: K_2O是氨合成催化剂的重要助剂,它在催化剂中的形态一直是人们注意的问题.文献[1,2]指出,催化剂中的K分为可溶性和不可溶性的两种;文献[3]又明确指出了K_2O,,KAlO_2和KFeO_2等是可溶性钾盐.贵刊在1983年第4卷第3期刊登的“球形氨合成催化剂中钾的溶出规律”一文中用化学分析的方法证明铁酸钾是不可溶性钾盐,该文所引用的资料也明确地说铁酸钾是不可溶性的,但他们都没有提出不可溶性的直接证据.因此,我们认为铁酸钾究竟是可溶性的还是非可溶性的值得进一步说明. 根据一般化学分析的碱熔法的实践,我们认为铁酸钾应该是可溶性钾盐.但为了说明问题,我们用
Editor comrades: K_2O is an important catalyst for ammonia synthesis catalyst, its morphology in the catalyst has been a matter of concern. [1,2] pointed out that the catalyst K is divided into two kinds of soluble and insoluble; the literature [ 3] also clearly pointed out K_2O, KAlO_2 and KFeO_2 are soluble potassium salt.Your article in 1983, Volume 4, Issue 3 published “spherical ammonia synthesis catalyst potassium dissolution rule” article by chemical analysis proved Potassium ferrite is an insoluble potassium salt and the information in this article also makes it clear that potassium ferrite is insoluble, but none of them present any direct evidence of insolubility. Therefore, do we consider whether potassium ferrite is soluble or not Non-soluble is worth further explanation.According to the general chemical analysis of alkali melting practice, we think potassium ferrite should be soluble potassium salt.But to illustrate the problem, we use