pure cobalt powder
纯钴粉
以上为机器翻译结果,长、整句建议使用 人工翻译 。
Cobalt can be converted into complex ion by excess ammonia and then recovered as highly pure metal cobalt powder by replacing with zinc powder.
所得少量浓缩液去掉铁等杂质之后,加过量氨使钴形成络合物,再用锌粉置换出金属钴粉。
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