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By the reaction of 2 aryl 5 mercapto 1,3,4 triazoles with alkyl dihalide in presence of dilute base, ten new title compounds had been prepared.

以2-芳-5--1,3,4-三唑为原料,在稀碱存在下与二卤代烷反应合成了10个新的标题合物。

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Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝酸银标准溶液,采用电位滴定法,连续测定酸性镀铜光杂环合物和硫脲衍生物的含量。

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longdrawn, long-drawn, long-drawn-out, longe, longeared, long-eared, longer, longeron, longest, longeur,

相似单词


3G, 401(K), a,

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