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硫代乙酰胺滴定液

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北京华科盛精细化工产品贸易有限公司
13683659548 010-64112272
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  • Brand  北京华科盛精细化工产品贸易有限公司
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  • Main Business:化学试剂
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Last Updated 2025-08-12 15:01

硫代乙酰胺滴定液

北京华科盛精细化工产品贸易有限公司生产销售硫代乙酰胺滴定液:物理性质

极微溶于苯、。其水溶液在室温或50-60℃时相当稳定,但当有氢离子存在时,很快产生而分解。新制品有时有硫醇臭、微吸潮。

生产方法编辑

与反应,或使乙酰胺与反应可制得硫代乙酰胺。

硫代乙酰胺用途硫代乙酰胺滴定液

用于生产催化剂、稳定剂、阻聚剂、电镀添加剂、照相药品、农药、染色助剂和选矿剂等。也用作聚合物的硫化剂、交联剂、橡胶助剂和医药原料。

除此之外,使用硫代乙酰胺时一定要小心,因为本品能损伤肝脏[1]

气体具有毒性和臭味,实验时常用新配制的H2S饱和水溶液或硫代乙酰胺作为代用品。物理性质

极微溶于苯、。其水溶液在室温或50-60℃时相当稳定,但当有氢离子存在时,很快产生而分解。新制品有时有硫醇臭、微吸潮。

硫代乙酰胺化学性质

 (1)在酸性溶液中,硫代乙酰胺水解生成H2S,可代替H2S沉淀第II组阳离子。水解反应如下:

CH3CSNH2+H2O CH3CONH2+H2S

长时间煮沸,CH3CONH2进一步水解:

CH3CONH2+H2O<==>CH3COONH4

(2)在碱性溶液中,硫代乙酰胺水解生成S2-,可以代替Na2S使用,水解反应如下:

CH3CSNH2+3OH-<==>CH3COO-+NH3+S2-+H2O

(3)在氨溶液中,硫代乙酰胺水解生成HS-,可以代替(NH4)2S沉淀第III组阳离子。水解反应如下:

CH3CSNH2+2NH3<==>CH3C(NH2)NH+NH+4+HS-

硫代乙酰胺的水解速度随温度升高而加快,反应一般在沸水浴中进行。在碱性溶液中其水解速度较在酸性溶液中为快。

Company Name 北京华科盛精细化工产品贸易有限公司
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Business Scope 化学试剂
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