水素化ナトリウムによる精製
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皆様、質問があります。工業用の硫化ナトリウムを再精製して、高純度の硫化ナトリウム（試薬級またはポリフェニレンスルホイド専用級）にすることは可能でしょうか。
:lol:lol:lol
http://www.chengdudemei.com.cn/index.php?s=/Home/Article/lists/category/busilist 彼のところで対応できるか聞いてみてください。成都美華
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