查询词典 butyl

Triphenyl phosphite provided prominent stabilization only when used in combination with other stabilizers. Good results have been obtained for both polyether-urethane and nitrate esters when using 2,6-di-t-butyl-4-methyl-phenol as stabilizer.

亚磷酸三苯酯单独使用时效果较差，但与其它种类的稳定剂混合使用能得到较好的效果。2，6-二叔丁基-4-甲基酚对硝酸酯和聚氨酯粘结剂均具有良好的稳定作用。

The synthetic organic chemicals, such as phenol, m cresol, phloroglucinol, phenylamine, 3,5 xylenol, p tertiary butyl phenol, nitrobenzene, tert butanol and chloral were oxidized in supercritical water system.

研究了超临界水氧化系统中合成有机化学品，如酚、间苯三酚、对叔丁基酚、间甲酚、3 ，5-二甲酚、苯胺、硝基苯、叔丁醇、三氯乙醛等的氧化作用。

The synthesis of celery ketone from butyl aldehyde and ethyl acetoacetate was improved with higher yield by using solid superbase(K2O/γ-Al2O3) for the first time.

在正丁醛和乙酰乙酸乙酯为原料合成芹菜酮的合成过程中，对其催化方法进行改进。

It starts with an aldol-type condensation in which a solution of the now commercially available E -[3-(4-fluorophenyl)-1-(1-methylethyl)-1 H-indol-2-yl]-2-propenal, 4 , 5 in THF is added to the preformed sodium-lithium salt of tert -butyl acetoacetate 5 at room temperature in THF.

它从一个醛型缩合其中一个解决现在的电子商业可-[3-(4-fluorophenyl)-1-(1-methylethyl)-1吲哚-2-基]-2-丙烯醛、4，5年增加了预四氢呋喃钠-锂盐叔丁基乙酰四氢呋喃在常温5。

A set of laser monitoring observation system to be used for measure the solubility with a high speed, which is programmed heating apparatus , have designed. The solubility of 1,2-cyclohexanediol were measured in water, methyl acetate, acetic ester, propyl acetate, butyl acetate, methyl acrylate, ethyl acrylate, acetoacetic ester at different temperature.

另外，还建立了一套带激光监视系统，可以控制升温速率的溶解度测定实验装置，测定了反式-1，2-环己二醇在水、乙酸甲酯、乙酸乙酯、乙酸丙酯、乙酸丁酯、乙酰乙酸乙酯、丙烯酸甲酯、丙烯酸乙酯和甲基丙基酮等9个二元体系中的溶解度。

N butyl 2 ethoxy thioacridone ; acridone ; electron transfer ; fluorescence

N-丁基-2-乙氧基硫代吖啶酮；吖啶酮；电子转移；荧光

The results showed that upon Xe lamp irradiation,N butyl 2 ethoxy thioacridone was transformed into corresponding acridone and the presence of the lattter was confirmed by UV visible absorbtion spectrum and mass spectrum.

结果表明：在Xe灯光照下，N 丁基 2 乙氧基硫代吖啶酮转变成了相应的吖啶酮，用紫外可见光谱和质谱证实了吖啶酮的存在；生成的吖啶酮可被二苯基碘盐猝灭，它们之间的荧光猝灭遵循电子转移的反应机理。

The optimal conditions for extraction of saponins PD from Akebia trifoliate were as follows: 80 ml of 70% ethanol, 90 min action duration, then extractived by n-butyl alcohol for 3 times, hydrolyzed with 36% hydrochloric acid for 4 h at 70%, and extractived by chloroform.

结论］三叶木通中常春藤皂苷的最佳提取工艺为：70%甲醇溶液80 ml超声提取90 min，水饱和正丁醇萃取3次，36%盐酸4 ml，70℃水浴回流水解4 h，氯仿萃取2次，合并氯仿层，旋转蒸干后甲醇溶解定容。

The hydroperoxide may be decomposed by Cu2+ to form alkoxyl free radicals,which increased the rate of the whole reaction.In the meanwhile,1-butyl-3-methylimidazolium hydroxide was studyed for the oxidation of cumene and DIPB.

在研究复合固体无机碱的同时，本文还研究了碱性离子液体1-丁基-3-甲基咪唑氢氧化化物等有机碱在氧化中的催化性能。

The optimal carrier gas velocity of prepared SE-30 series capillary chromatographic columns was studied and used to separate isomeric compounds. The efficiency of SE-30 capillary chromatographic columns has been studied with different diameters, film thicknesses and oven temperatures, using n-do-decane, phenol, aminobenzene, and butyl acetate as test samples.

研究自制的SE-30系列毛细管气相色谱柱的载气最佳线速度，并应用于同分异构体的色谱分离分别用十二烷、苯酚、苯胺、醋酸丁酯作试祥在不同载气线速条件下对不同口径、不同膜厚、不同柱温的SE-30毛细管色谱柱的柱效进行考察，并在最佳线速度条件下分离异戊醇、硝基氯苯、硝基甲苯及二乙苯同分异构体体系。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新