| 摘要 |
A high purity copper sulfate, characterized in that it has a content of Ag, which is an impurity, of 1 wt-ppm or less and a purity of 99.99 wt % or higher; and a method for producing the high purity copper sulfate, characterized in that it comprises dissolving a crude copper sulfate crystals or copper metal, and subjecting the resultant solution to the extraction with a solvent and then to a treatment with an activated carbon, followed by re-crystallization. The method allows the production of a high purity copper sulfate from a commercially available copper sulfate crystals at a reduced cost, by using the dissolution of the copper sulfate crystals in water or an acid, followed by a purification process.
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