ethyl hydroxide
英 [ˈeθɪl haɪˈdrɒksaɪd]
美 [ˈeθɪl haɪˈdrɑːksaɪd]
网络 乙醇
双语例句
- Ethyl coumarin-3-carboxylate was synthesized from salicylaldehyde and diethyl malonate in absolute alcohol by Knoevenagel condensation reaction using hexahydropyridine as the catalyst. Hydrolysis of the reaction product with sodium hydroxide gave coumarin-3-carboxylic acid.
在无水乙醇中，以六氢吡啶为催化剂，通过水杨醛与丙二酸二乙酯的Knoevenagel缩合反应合成了香豆素-3-羧酸乙酯，再经水解、酸化得到香豆素-3-羧酸。 - In the present investigation carboxymethyl potato starch has been prepared by the alcohol medium method. The effect of the volume and concentration of the ethyl alcohol, sodium hydroxide concentration, monochloroacetic acid concentration, reaction temperature and reaction time have been studied.
本文以马铃薯为原料，用乙醇溶剂法制备了马铃薯羧甲基淀粉钠，研究了氯乙酸、氢氧化钠、反应时间、反应温度、乙醇浓度、乙醇溶液体积等因素对反应的影响。 - Thas a mixture of 0.1 mol phenol, 0.3 mol n-butyl bromide ethyl alcohol as solvent in the presence of potassium hydroxide and polyethylene glycol-400 were heated for a h, the yield of n-butyl phenyl ether could reach 96 7%.
当01mol苯酚，03mol正丁基溴，乙醇为溶剂，在氢氧化钾和聚乙二醇400存在下，加热2h正丁基苯基醚收率达967% - Based on the discriminant variable of the NIR spectra, the four stages were determined in the whole separating process by the elution with 70% ethyl hydroxide.
采用70%的乙醇进行等度洗脱，以近红外光谱判别变量为表征手段，将分离过程分为四个阶段。