nitric anhydride
- nitric anhydride的基本解释
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硝酸酐, 硝酐
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The optimum reaction conditions were: at present of acetic anhydride, a stoichiometric quantity of nitric acid, at room temperature for 40 minutes. Nitration of chlorobenzene gave a,50% yield of mononitro compounds, and an ortho-para isomer ratio 0.20 in product distribution of chlorobenzene mononitration.
结果表明：硅钨酸催化性能较好，催化剂载体以纳米二氧化硅最好，反应条件中醋酸酐用量是主要影响因素；SiW_(12)O_(40)~(4-)／纳米SiO_2催化剂具有强对位选择性：在醋酸酐存在下，氯苯与等当量的硝酸室温下反应40分钟，氯苯一硝化产物中邻／对硝基氯苯异构体的质量比达0.2，产率可达50％。
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The nitration of toluene was carried out in the presence of acetic anhydride with CCl4 as solvent, 95% nitric acid as nitrating reagent, and niobic acid calcinated at 300℃ for 3 h as catalyst for 60 min at 40℃.
实验结果表明，当反应温度为40℃，反应时间为60min时，以CCl4为溶剂，以质量分数为95%的硝酸为硝化剂，在醋酐存在条件下，以经300℃焙烧3h后的铌酸作为催化剂，甲苯硝化产物中异构体的邻对比达1.26，较硝硫混酸的1.67显著降低，产物得率达99.3%。
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The effects of all kinds of factors, just like calcination temperature of niobic acid catalysts, nitration reaction time, nitration reaction temperature, recovered catalyst, acetic anhydride and concentration of nitric acid were studied by gas chromatography.
研究了催化剂焙烧温度、硝化反应时间、硝化反应温度、有无醋酸存在、硝酸浓度、催化剂的重复使用等因素对甲苯硝化反应影响。
- 更多网络解释与nitric anhydride相关的网络解释 [注：此内容来源于网络，仅供参考]
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nitric anhydride：硝酐
nitric acid 硝酸 | nitric anhydride 硝酐 | nitric oxide 一氧化氮
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nitric anhydride：硝酸酐; 五氧化二氮
Nitrex A.G. of Zurich;苏黎世氮肥出口有限公司;; | nitric anhydride;硝酸酐; 五氧化二氮;; | nitric oxide catalysis;氧化氮催化作用;;
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nitric anhydride：硝酐;五氧化二氮
硝酸 nitric acid | 硝酐;五氧化二氮 nitric anhydride | 一氧化氮 nitric oxide