查询词典 reactants

The effect of reaction temperature,reaction time,materials ratio on the synthesis of piperidine alcohol benzoate ,hindered amine light stabilizer,from piperidine alcohol and benzoyl chloride by direct condensation were studied,and the proper technological conditions were given as follows:the reaction temperature is 95℃;reaction time is 4 h; the mole ratio of reactants,n∶n is 1∶1.4,the amounts of solvent is 40 mL(based 0.1mol piperidine alcohol),the arerage yield ...

王树清，高崇，苯甲酸哌啶醇酯HALS的合成工艺研究研究了以苯甲酰氯和哌啶醇为原料直接缩合合成苯甲酸哌啶醇酯受阻胺光稳定剂时反应温度、反应时间、原料配比等条件对合成反应的影响，确定了最佳工艺条件。最适宜的工艺条件是：反应温度95℃、反应时间6h、原料摩尔比n∶n为1∶1.4，溶剂用量为70mL(相对于0.1mol哌啶醇)，苯甲酸哌啶醇酯的收率为91.05%，产品纯度98.5%。

A study has been made on Synthesis of poly with diphenyl ether and terephthaloyl chloride as reactants, 1,2 dichloroethane as solvent, and aluminum chloride as catalyst.

研究了以1，2－二氯乙烷为溶剂，以无水三氯化铝／DMF为复合催化剂体系，在温和条件下，以二苯醚和对苯二甲酰氯为原料合成高分子量聚醚酮酮的方法。

We controlled the composition of reactants and reaction time to study their relations and their effects on optical characteristics, morphology and physical property of the formed coatings. The particle size of silica and modified silica were measured by TEM and light scattering. The surface morphologies of the films were observed by FESEM, SEM, and α-step. FTIR and EDAX were employed to investigate the chemical bondings in the coatings.

实验中调整反应组成物(TEOS、HCl、DPHA、MSMA)和反应条件彼此间的反应关系作分析，探讨反应物添加量对混成材料的光学、形态学、物性之影响，利用粒径分析仪，TEM观察粒径大小及分布、利用FESEM，SEM，α-step观察表面形态学，，而其化学分析部份，利用FTIR，EDAX检测其化学结构及元素分析。

Using poly(benzyl-ether) dendrons with thiol functionalities and CNTs/CdS core-shell nanowires as reactants, using chloroform as solvent, through adjusting the temperature and time, soluble CNTs/CdS core-shell nanowires have been obtained.

采用带巯基的聚苯甲醚树枝状分子和CNTs/CdS核壳纳米线在有机溶剂中作用，通过调节反应时间和温度，成功制备了可溶性CNTs/CdS核壳纳米线结构。

It is proved by the experiments of catalytic pyrogasification that the new way of unconventional gasification with non-reactive gas is superior in the consumption of reactants, the improvement of catalyst stability, the distribution of producted gas and the clearance of tar

催化裂解气化实验证明这种新的无活性气体加入的非传统气化，在原料消耗，提高催化剂稳定性，产品分布及除净焦油等方面具有明显优越性。

The difference spectrum of a mixture of haematin and FMN at pH 7.4 measured against the two reactants separately has been found to show 3 distinct peaks at 525,610 and 685 mμ.

用所谓连续变易法作图结果表明反应产物包括：血红素比FMN等于1：1，1：2及1：4等三种络合物，结合紧密程度依次降低。

Plot of the difference absorbancy at these 3 wavelengths according to the so-called continuous variation method~([7]) clearfly demonstrates the formation of 3 complexes with the proportions of haematin: FMN=1:1, 1:2 and 1:4 in the order of decreasing affinity between the reactants.

老化血红素与FMN反应只能产生1：1的络合物，表现出一个差吸收峰(585mμ)在过量连二亚硫酸钠存在下差光谱形状略为不同，血红素及FMN皆为全还原型时，络合物络合能力降低一个数量级。

It is concluded that the heap leaching process is a dynamic one with multiphase chemical reactions in which the leaching-rate of target metals is dependent on the rate of the chemical dissolution as well as the diffusion of the reactants and resultants.

分析了溶浸剂的作用机理，认为堆浸浸出过程是一个多相反应动力学过程，浸出速度与溶解化学反应速度、反应物和生成物的扩散速度等因素有关。

In most hydrolyses involving organic compounds, the other reactants and products are neutral; for example, an ester can be hydrolyzed to form a carboxylic acid and an alcohol.

大多数水解都包含有机化合物，其它的反应物和产物都是中性的；例如，酯可以水解为羧酸和醇。

In hydrolyses of compounds with ionic bonds, the nonwater reactants are salt s, acids, or bases, participating in dissociation reactions.

在带离子键的化合物的水解中，参与离解反应的非水反应物是盐、酸或碱。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。