Diphenyl guanidine has been prepared by using of Fe2 O3 as catalyst and70% ethanol as solvent, and simultaneously the by-product H2S is used to prepare thiourea.

  • 本文提出了在70%乙醇溶剂中以氧化铁作为触煤合成二苯胍,同时回收副产硫化氢合成硫脲的联合制备方法。

  • 互联网摘选 2025-01-20 12:31:23

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