遷移金属を多量に含有するイリジウム合金の過酸化ナトリウムによる分解法

概要

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It is well known that Ir is a chemically stable element that is difficult to dissolve, even in a strong acid. Furthermore, when transition metals are added to it, Ir becomes more difficult to dissolve in acid. To solve this problem, we tried to dissolve Ir-Nb, Ir-Zr, Ir-Nb-Zr, Ir-Nb-Pt, Ir-Nb-Pt-Al, and Ir-W alloys using a fusion method at 1073 K in sodium peroxide. This was successful. and the concentration of each element was analyzed with ICP-AES. The result was in good agreement with the nominal concentration. This shows that the fusion method in sodium peroxide and analysis with ICP-AES are suitable for Ir alloys.
社団法人日本分析化学会の論文
2003-05-05