Diphenyl guanidine has been prepared by using of Fe2 O3 as catalyst and 70% 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。
Diphenyl guanidine has been prepared by using of Fe2 O3 as catalyst and 70% 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。
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