查询词典 acid reaction

Capric betaine was prepared through ammonolysis of α-chlorododecanoic acid with trimethylamine. The participation effect of the neighboring carboxyl group of α-CDA on dynamics and thermodynamics of the reaction was investigated.

以α-氯代十二酸与三甲胺的氨解反应制备α-癸基甜菜碱，研究了α-CDA在与三甲胺氨解反应中邻位羧基对反应动力学和热力学的影响。

The yield of iso amyl propionate was up to 91.8% when molar ratio of isoamyl alcohol to propionic acid was 3.0:1, mass ratio of catalyst was 2.5%, and reaction time was 2.0 hs.

在醇酸物质的量比为3.01，催化剂用量为反应物料总质量的2.5%、反应时2.0h，产品收率可达91.8%。

In the acylation reaction between anisole with acetyl chloride, The catalyst of ZnCl〓/HY-98 prepared by MWI had the best catalytic activity and the selectivity of p-methoxy acetopheone. The catalytic active centers were ZnCl〓 dispersed in zeolite and the Bronsted acid sites in HY-98 zeolite itself.

在苯甲醚与乙酰氯的酰化反应中，微波固相法制备的ZnCl〓／Y催化剂有相对较好的催化活性和选择性，起催化作用的主要是分散在分子筛表面的ZnCl〓和分子筛本身的B酸。

Pretreatment of arsenical refractory gold concentrate - Leaching by sodium dichromate ;2. The solution of sulfuric acid was added dropwise to the reaction vessel contained 1,3-dichloro-2-propanol, sodium dichromate and water.

将硫酸水溶液滴加到1，3-二氯-2-丙醇与重铬酸钠水溶液的混合物中，在温度23~27℃的条件下搅拌反应5 h，重铬酸钠∶1，3-二氯-2-丙醇=1∶2，此条件下收率为79。

By single factor experiments, theeffects of the varieties of factors on the degree of substituent, reaction efficiency,viscidity, water-holding ability , and water keeping of CMS are studied, including the degree ofneutralisation , proportion of acid and alkali, basification temperature , basification time ,etherify temperature, etherify time and so on.

通过单因素实验研究了中和度、酸碱比、碱化温度、碱化时间、醚化温度、醚化时间等对羧甲基反应取代度、反应效率、粘度、吸水性和保水性的影响。

Similarly, the effects of various factors on the reaction of C14 AOS acid with benzene were also studied.

同样的影响，并讨论了各种因素对反应出酸和苯C14等进行了研究。

The spectrophometric determination ofγ-Aminobutyric acid in brown rice was studied based on Berthelot reaction.

基于Berthelot显色反应，研究了快速测定糙米中γ-氨基丁酸含量的比色法。

Experimental results show that hydrogen can be produced by the reaction between nitric acid with a given concentration and aluminum handled by means of mercuric bichloride solution under room temperature. Whereas hydrogen is not detected without aluminum handled by mercuric chloride solution.

研究发现，室温下用去膜并经氯化汞溶液处理过的铝箔与一定浓度的稀硝酸作用可产生氮气，而未经氯化汞溶液处理的铝箔与稀硝酸作用几乎检测不到氮气的生成。

The effects of the composition of catalyst (the structure and amount of bident ligand and strong acid, the cocatalytic activity of Cu〓, the roles of methanol and phenol etc.) and the copolymerization condition (the reaction time, temperature, amount of ST and CO, the structure and amount of solvent etc.) on catalytic activity were studied. The principle of the copolymerization was investigated.

研究了催化体系组成（含氮双齿配体的结构与用量、强酸的结构与用量、铜盐的助催化作用、甲醇和酚类化合物作用等）和共聚反应条件（共聚反应的温度与时间、溶剂种类与用量、苯乙烯与一氧化碳量等）对溶液共聚反应的催化活性的影响，探索溶液聚合反应规律。

The effects of the composition of catalyst (the structure and amount of bident ligand and strong acid, the cocatalytic activity of Cu〓, the roles of methanol and phenol etc.) and the copolymerization condition (the reaction time, temperature, amount of ST and CO, the structure and amount of dilution reagent etc.) on catalytic activity were studied in detail. Also the optimum copolymerization condition was chosen.

深入考察了催化体系组成（含氮双齿配体的结构与用量、强酸的结构与用量、铜盐的助催化作用、醇类与酚类化合物的作用等）和沉淀共聚反应条件（共聚反应的温度与时间、稀释剂结构与用量、苯乙烯与一氧化碳量等）对该共聚反应的催化活性的影响，优化共聚反应的聚合条件。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。