| 摘要 |
<p>A process for producing from a hexaaminoplatinum complex salt a plating solution for electroless platinum plating which contains the hexaaminoplatinum complex, characterized by including a process for hexaaminoplatinum complex purification which comprises (a) a step in which an aqueous solution of a hexaaminoplatinum complex salt as a starting material is prepared and carbon dioxide is passed through the aqueous solution to produce the carbonate of the hexaaminoplatinum complex and (b) a step in which the hexaaminoplatinum complex carbonate is dissolved with an acid.</p> |
