| 摘要 |
Disclosed is a method for producing a powder mixture containing an alkali metal salt (component A) in which an aqueous solution thereof shows basicity, at least one metal salt (component B) selected from among the salts of copper, manganese, iron, cobalt, and zinc, and a compound (component C) represented by general formula (1), wherein a metal aqueous solution, which is an aqueous solution of component B, is sprayed and mixed into the powder of component A, and then the powder of component C is mixed. As a consequence, it is possible to easily produce a powder mixture exerting excellent solubility to water even when a metal salt and a basic alkali metal salt are added. |
