TY - JOUR
T1 - Dissolution of Ir-based alloys including transition metals with sodium peroxide
AU - Yamamoto, Yoshinobu
AU - Yamabe-Mitarai, Yoko
AU - Hirosaki, Naoto
AU - Harada, Hiroshi
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2003/5
Y1 - 2003/5
N2 - 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.
AB - 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.
KW - Dissolving method
KW - Fusion method
KW - ICP-AES
KW - Ir-alloy
KW - Sodium peroxide
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U2 - 10.2116/bunsekikagaku.52.341
DO - 10.2116/bunsekikagaku.52.341
M3 - Article
AN - SCOPUS:0038320297
VL - 52
SP - 341
EP - 345
JO - Bunseki Kagaku
JF - Bunseki Kagaku
SN - 0525-1931
IS - 5
ER -