Silver in the form of silver sulphide was recovered from waste fixing solution with sodium sulphide.

  • 用硫化钠从废定影液中以硫化银的形式回收银,高温灼烧硫化银得纯银,再制备成硝酸银.

  • 网络文摘精选 2025-01-19 10:12:57

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