查询词典 toluene

This results in a higher possibility for the components to enter the unstable demixing gap after the rapid phase separation of the system has taken place.Therefore,a bicontinuous structure is easily formed for CA membrane. For the systems of ScCO_2/toluene/PSt and ScCO_2/solvent/PVB,the increase of temperature or decrease of pressure leads to the binodal curves shifting toward the polymer/solvent axes,and thus results in the decrease of miscibility gap.The membrane toplayers of ScCO_2/solvent/PVB systems are dominated by the equilibrium thermodynamics,while the formation of membranes sublayers is the result of the combination of the equilibrium thermodynamics and membrane formation kinetics.

以下时由双节线、旋节线之间构成的亚稳互溶分相区很窄，使得该体系在快速分相后其组成变化进入旋节线内不稳分相区的可能性极高，从而易导致CA膜形成双连续结构；温度升高或压力减小均可导致ScCO_2/甲苯/PSt与ScCO_2/溶剂/PVB两种铸膜体系的双节线向聚合物/溶剂轴一侧靠近，均相区减小；ScCO_2/溶剂/PVB体系的膜表面结构形成主要受平衡热力学过程的控制，而膜的截面结构是其平衡热力学与扩散动力学共同作用的结果。

Nitration of toluene with fluorous biphase system was studied by using the perfluorous nonene as solvent.

利用全氟壬烯-甲苯两相体系研究甲苯的硝化反应。

Fluorous biphase system formed by organic solvents and perfluorous nonene or perfluorous hexane and toluene nitration were investigated.

研究了氟溶剂和有机溶剂组成的氟两相体系、等当量的甲苯和硝酸的硝化反应。

Then, a novel biporous resin was prepared with granules of sodium sulfate and toluene and n-heptane as porogenic agents based on the concept of a novel porogenic mode, cooperation of solid granule and solvent.

在此基础上，采用固体颗粒与有机溶剂联合致孔模式，以硫酸钠颗粒为固体致孔剂，制备新型双孔离子交换剂。

It was observed that the optimum temperature for the fluorous biphasic regioselective nitrations of toluene, ethylbenzene, flurobenzene, chlorobenzene, bromobenzene, odobenzene and diphenyl ether were 80℃, 60℃, 60℃, 60℃, 80℃, 80℃ and 70℃ respectively. The catalyst had almost no activity when the reaction system contained 25% of water. Simultaneously, increasing the volume ratio of fluorous phase and organic phase in the system in which the fluorous phase can miscible with organic phase could decrease ortho-para ratio.

发现甲苯、乙苯、氟苯、氯苯、溴苯、碘苯加二苯醚的最佳氟两相选择性硝化温度分别为80℃、60℃、60℃、60℃、80℃、80℃和70℃，当加入25%的水时，催化剂已基本失去活性，在氟相和有机相能完全互溶的体系中升高氟相和有机相的体积比有利于降低邻对位比值。

In fact, in addition to the deethanization toluene and xylene and so few pure hydrocarbons spirits, the spirits are various structure chlorohydrocarbon.

实际上除乙烷，甲苯和二甲苯等少数几种纯烃化合物溶剂油外，溶剂油都是各种结构烃类的混合物。

Results: The 12 kinds of toxicants including methyl acetate, ethyl acetate, benzene, toluene, ethylbenzene, butyl acetate, p-dimethylbenzene, m-dimethylbenzene, o-dimethylbenzene, n-butanol, cinnamene and cyclohexanone were separated well. Good linear relationship sensitivity and reproducibility were obtained and detection limits (S/N=3) of them were 0.2 mg/l respectively. Conclusion: In this paper, a new method for simultaneous determination of 12 kinds of toxicants by using gas chromatography has been described.

结果：对乙酸甲酯、乙酸乙酯、苯、甲苯、乙酸丁酯、乙苯、对二甲苯、间二甲苯、邻二甲苯、正丁醇、苯乙烯、环己酮12种有毒物质的分离效果好，线性和重现性均较好，方法的检测限达到0.2 mg/L。

Methods CBP 20 capillary column was used and the temperature was increased with a program to separate and determine 7 kinds of benzenes series,namely,benzene,toluene,ethylbenzene,p-xylenol,inter-xylenol,cinnamene and ortho-xylenol.

利用CBP-20毛细管色谱柱，采用程序升温实现苯、甲苯、乙苯、对二甲苯、间二甲苯、苯乙烯、邻二甲苯等7种苯系物的分离测定。

Objective: To use p-toluene sulfonic acid as the catalyst for the esterification reaction of cinnamic acid with isoamyl alcohol in liquid phase.

目的：以对甲苯磺酸为催化剂对肉桂酸与异戊醇的液相酯化反应进行研究。

In addition, a benzene, toluene (0.32%), was also detected in 80% ripening fruit. In 90% ripening fruit were detected 27 kinds of aroma components belonging to 2 categories. Among the components, 17 were esters, and 10 alkenes. Of the 17 esters, methyl octanoate is the highest (21.00%), followed by ethyl hexanoate (17.64%), methyl hexanoate (14.34%). Of the 10 alkenes cis-β-ocimene is the highest (1.00%), followed by à-copaene (0.81%) and trans-ocimene (0.48%).

在9成熟果实中检测到2类共27种香气成分，分别是酯类17种和烯类10种；在酯类中，相对含量最高的是辛酸甲酯(25.27%)，其次是辛酸乙酯(21.00%)、己酸乙酯(17.64%)、己酸甲酯(14.34%)；在烯类中相对含量较高的有β-顺式－罗勒烯(1.00%)、à-蒎烯(0.81%)和反式－罗勒烯(0.48%)。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。