反应物

A method for separation and analysis of salicylic aldehyde and phenol by capillary gas chromatography was developed.

采用毛细管气相色谱法对由苯酚和甲醛为原料合成的水杨醛及反应物苯酚进行了分离分析。

The results show different factors in this process such as reactant ratio, atmosphere pressure etc.

结果表明，反应物投料比例，合成气氛压力等因素对合成产物化学计量配比有显著的影响。

The effects of synthesis temperature on the lattice parameter,the crystallite size and the content of CO2-3 of the prepared samples,the effects of the concentration of reactants on the particle size and morphology,and the effects of the molar ratio of barium hydroxide to tetrabutyl titanate on the molar ratio of bar...

研究了合成温度对样品的晶胞参数、晶粒大小和CO32-含量的影响；反应物浓度对样品的颗粒大小和形貌的影响；氢氧化钡与钛酸四丁酯的摩尔比对样品中钡钛摩尔比的影响。

Many by-products were detected in the reaction mixture and considered to be formed deriving from water, solvents and the reactants themselves.

检测中发现了很多副产物，主要来自是体系内的水分、溶剂和反应物本身。

Sliver nanoplates were prepared through a visible light induced reduction process by a reaction between sodium citrate and silver nitrate in an aqueous solvent at room temperature. UV-Vis spectra were employed to monitor the growth of the silver nanoplates.

在水相体系中以柠檬酸钠和硝酸银为反应物，利用可见光诱导的还原过程在室温下制备盘状的银纳米粒子，通过紫外-可见光谱监控了不同反应条件下银纳米粒子的生长过程及体系的稳定性。

In this study,additives were used to con-trol the size and shape of CaCO3.Needle,sphere,short chain and hexangular plate likenanometer CaCO3were synthesized by introducing CO2to lime suspension under opti-mum condition.

采用鼓泡碳化法，在最佳反应温度、反应物浓度、气体流量的条件下，考察了不同添加剂对产物形状及粒径大小的影响，得到了粒径小于100 nm且分散性能良好的球状、针状、短链状及六角板状纳米碳酸钙。

LabVIEW 7.0 Express-based program for determining second-order reaction rate constant by electric conductivity is designed. It can process the data with both equality and inequality of initial concentrations, avoiding complex process of manual processing data and personal error produced in data processing by handwork and improving veracity and repeatability of the experiment results.

研制了基于LabVIEw 7.0 Express的处理电导法测定二级反应速率常数实验数据程序，对反应物初始浓度相等和不等条件下均可处理，避免了人工处理数据的复杂繁琐过程及人工处理过程中的人为误差，提高了实验结果的准确性和重现性。

Under the conditions of 456 W power output and l0min irradiation time, the quantities of reactants are malonic acid 13.Og and vanillin lOg, in pyridine solvent (1 6m1), the yield of reaction is 80%.

本实验在额定功率为456W，辐射时间为10min下，反应物投料量分别为丙二酸13.6g，香兰素10g在16ml溶剂中进行反应。

In the course of educational experiment on the synthesis of non-ionic surfactant, in order to reduce the depletion on ethylene oxide and save experimental cost, an educational experimental device with the function of enduring highpressure and little reaction mass was constructed by refitting a 250mL high-pressure reactor. In order to verify the function of the experimental device, lauryl alcohol polyoxyethylene ether was synthesized by it.

在非离子表面活性剂的合成教学实验中，为了减少环氧乙烷的消耗，节约实验成本，对250mL的高压反应釜进行了改造，筹建了一套耐高压反应物料量少的教学实验装置，并用此装置合成了十二醇聚氧乙烯醚，以验证此装置的性能。

Ethyl tert butyl ether is synthesized from ethanol and tert butyl alcohol by reaction distillation.

以乙醇和叔丁醇为反应物，采用反应精馏法合成了乙基叔丁基醚。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。