• 提出了可工业化噻吩乙醇合成方法详细地讨论降低副产物生成的途径格氏条件进行了研究。

    This works put forward a method of synthesis of thiophene alcohol and discuss carefully the way of reducing by-product and condition of brominating and Gall's.

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  • 乙醇溶剂碘化钠催化剂,由金属对苯二酚丁烷合成了1 ,4 -二氧基苯。

    With ethyl alcohol as solvent and sodium iodide as catalyst, 1,4-dibutoxybenzene was synthesized from metal sodium, hydroquinone and n-butyl bromide.

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  • 目的建立芬酸原料二氯甲烷、甲苯1,2-二甲氧基乙烷、乙酸乙酯、乙醇残留量测定方法

    Objective To establish a method for detection of dichloromethane, 1,2-dimethoxyethane, toluene, ethyl acetate and ethanol in bromfenac sodium.

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  • 发明涉及一种乙醇噻托结晶及其制备方法药物组合物

    The present invention relates to alcoholated tiotropium bromide crystal and its preparation process and medicine composition.

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  • 利用三乙醇TEA)、十六烷基三甲胺(C TMAB分别改性蜂窝煤渣研究了改性煤渣吸附水中对硝基苯酚的性能。

    The adsorption characteristics ofp -nitrophenol in wastewater on honeycomb briquet slag modified by triethanolamine(TEA) or hexadecyl trimethylamine bromide(CTMAB) were studied.

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  • 利用三乙醇TEA)、十六烷基三甲胺(C TMAB分别改性蜂窝煤渣研究了改性煤渣吸附水中对硝基苯酚的性能。

    The adsorption characteristics ofp -nitrophenol in wastewater on honeycomb briquet slag modified by triethanolamine(TEA) or hexadecyl trimethylamine bromide(CTMAB) were studied.

    youdao

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