查询词典 aqueous solution

Color reaction was performed in organic solution-salt solution biphasic system. The organic solution was 1,2-Dichloroethane-Isoamyl alcohol mixture (V/V=96:4) added Bromophenol blue (per 100 mL added 0.05 g). The salt solution was 55%K2HPO4 aqueous solution added Na3CO3 (per 100 mL added 14 g), under the temperature of color reaction between 12℃ to 25℃.

显色反应在有机溶液－盐溶液两相体系中进行，有机溶液为每100 mL 1，2-二氯乙烷－异戊醇混合溶液（体积比96：4）加入0.05 g溴酚蓝，12~25℃显色反应条件下，盐溶液为每100 mL 55%K2 HPO4水溶液加入14 g Na2CO3。

The paper studies AM and DAC as monomer, copolymerize a new type of cationic polymer flocculants through aqueous solution polymerization, inverse emulsion polymerization and inverse microemulsion polymerization, then studies how to improve solid content by aqueous solution polymerization, ascertain the system and kinetics of inverseemulsion polymerization and technological conditions.

本论文探讨了以AM与DAC为单体，通过水溶液聚合、反相乳液聚合、反相微乳液聚合得到新型阳离子高分子絮凝剂，研究了如何提高水溶液聚合的固含量，反相乳液聚合体系的确定、动力学研究及其工艺条件等影响因素。

The method is characterized in that:(1) the reflux of the 2-[N, N- 2amino]-3-cyano-group-4-thiopheneacetic-5-carboxylic acid tetra ester is carried out in the proper sodium hydroxide aqueous solution of alcohol for 5h to 6h and the pH value is kept over 10 during hydrolysis;(2) the ethanol of 20 per cent to 60 per cent is added and then the strontium chloride aqueous solution with 2times to 2.5times molal weight is directly added, precipitates the crystal, is filtered and dried;(3) water is added to carry out the reflux and the little salt packed in the crude product is removed, and the product is collected through heat filtration.

其特征在于：①将2--3-氰基-4-羧甲基噻吩-5-羧酸四酯在适量氢氧化钠水醇溶液中回流5～6小时，水解过程保持pH值10以上；②然后再加入20-60％乙醇，随后直接加入2-2.5倍摩尔量氯化锶水溶液，析出结晶，过滤，晾干；③加水回流，除去粗品中包裹少量盐，热过滤，收集产品。

Based on the pseudobinary method and solute aggregation model of aqueous solution, a pseudobinary solute aggregation model for correlating the viscosity of water-organic solvent-salt solution is established. The model has been tested for ternary aqueous solutions saturated or unsaturated with salt. The average relative deviation is about 1.0%. The results are better than the pseudobinary local composition model presented early by authors.

结合水溶液粘度的溶质聚集模型和拟二元方法，作者提出了一个适用于水-有机溶剂-盐三元溶液粘度关联的拟二元溶质聚集模型，能够成功地应用于以盐饱和与不饱和水溶液粘度的关联，平均相对偏差约1.0%，比作者早先提出的拟二元局部组成模型(平均相对偏差为2～5%)有较大的改善。

A Photolysis of 5＇-deoxyadenosylcobalamin in neutral aqueous solution and methylcobalamin in neutral and acid aqueous solution has been investigated using pulsed, time-resolved photoacoustic calorimetry in the temperature range of 10-30℃. The resultant enthalpy changes, namely CoC bond dissociation energies for the above cobalamins, 129±17, 163±21 and 176±23kJ/mol, respectively, are consistent with the values obtained by thermolytic kinetic method.

运用光声量热法研究10～30°C温度范围内辅酶〓在中性水溶液中和甲基钴胺素在酸性和中性水溶液中的光解反应，测定了其光解反应的焓变，即Co—C键离解能分别为129±17，163±21和176±23 kJ／mol，这些值和文献中用热分解动力学方法测得的值一致。

At first, Oil phase conductivity change tendency is texted in this article, after mixed solution of Benzene,Tetrabutylammonium Bromid,cosurfatant which is added in KBr aqueous solution with different concentration, migration process of TBAB to the aqueous phase is studied.

本文首先通过电导率法测定了苯、四丁基溴化铵、助表面活性剂混合溶液中加入不同浓度的KBr水溶液震荡后油相电导率变化趋势，研究TBAB向水相迁移的过程。

In this thesis ,AgBr hydrosol was prepared by NaBr (aqueous solution of certain concentration) titrating AgNO3 (aqueous solution of certain concentration) and AgNO3 titrating NaBr. The effect factors to AgBr hydrosol were discussed and analysed.

本文用一定浓度的AgNO_3滴定NaBr，和用一定浓度的NaBr滴定AgNO_3制备了AgBr水溶胶，并对制备水溶胶的各个因素进行了讨论和分析。

On this basis, preference conformations of tautomers were calculated by the B3LYP/6-311+G(superscript **) method, both in the gas and aqueous phases, with full geometry optimization. The Onsager solution theory model was employed for aqueous solution calculations.

采用B3LYP/6-311+G方法对处于优势构象时的各互变异构体进行了几何全优化，并计算出它们的总能量、焓、熵、吉布斯自由能。

In this paper,the phase diagram of the aqueous solution system of potassium chloride and ammonium sulphate is calculated,analyzed and compared with that of such aqueous solution system into which certain amount of methanol is added,and the yield of the reaction is caculated.

硫酸钾是一种优质无氯钾肥，由氯化钾与硫酸铵复分解制备硫酸钾是十分重要的生产方法之一，其反应可表示为2KCl+(NH4)2SO4=K2SO4+2NH4Cl该反应氯化钾转化成硫酸钾的转化率受到各组分在体系中的溶解度限制而较低[1，2]。

Density functional theory calculations were performed to study the structures and relative stability of the gadolinium complexes, Gd(H2O)n3+(n=8,9), in vacuo and in aqueous solution. The polarizable continuum model with various radii for the solute cavity was used to study the relative stability in aqueous solution.

用密度泛函理论方法研究了气相和水溶液中Gd(H2O)n3+(n=8，9)化合物的结构和相对稳定性，其中水溶剂效应利用极化连续介质方法结合多种溶质空腔模型进行模拟。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。