查询词典 trinitro-toluene

The synthesis of guaifenesin was improved by direct application of the hydrolyzate of epichlorohydrin for the etherification with guaiacol and using toluene and ethyl acetate as the solvents for crystallization and recrystallization, respectively.

通过直接利用环氧氯丙烷的水解液中的 3-氯- 1，2 -丙二醇和改良成品析晶法及重结晶溶剂等工艺改进，愈创甘油醚的总收率可达 80 %。

PSA950 pressure sensitive adhesive is a toluene solution of phenyl based polysiloxane gum and resin.

PSA950 是苯基基础之聚矽氧烷树胶和树脂的甲苯溶剂感压胶。

Nsted acid.The comparison between the photocatalytic activity of heptane and toluene was made in the chapter three of this paper.

nsted酸，所有这些均有利于光生电子和空穴在表面的分离，从而可以极大地提高光催化活性。

The equilibrium and dynamics of benzene and toluene of low concentration in heptane adsorbed by molecular sieve-NaY were studied.The Langmuir?

研究并比较了NaY分子筛对正庚烷中低浓度苯、甲苯的吸附平衡及动力学。

The weight correction factors of toluene and its nitro derivates on flame ionization detector are determined by using n heptane as a standard.

采用正庚烷为标准物质，测定了甲苯及其硝基衍生物在火焰离子化检测器上的重量校正因

The synthesis methods of nipagin esters catalyzed by sulfuric acid , p- toluene sulfonic acid , ferric sul-fate hydrate, ferric chloride hexahydrate, aluminium chloride hexahydrate, rare earth compound, solid super acid and heteropoly acid were reviewed.

评述了采用硫酸、甲苯磺酸、合硫酸铁、水合三氯化铁、水合三氯化铝、土化合物、体超强酸和杂多酸等催化剂催化合成对羟基苯甲酸酯的方法。

The synthesis methods of dibutyl succinate catalyzed by p-toluene sulfonic acid, amino sulfonic acid,strongly acidic cationic exchange resin, ferric chloride hexahydrate, stannic chloride pentahydrate, copper sulfate , ammonium ferric sulfate dodecahydrate, titanium sulfate, sodium bisulfate monohydrate,and solid super acid et al were reviewed.

本文评述了对甲苯磺酸、氨基磺酸、强酸性阳离子交换树脂、六水三氯化铁、五水四氯化锡、十二水合硫酸铁铵、硫酸钛、一水硫酸氢钠和固体超强酸等催化剂催化合成丁二酸二丁酯的方法。

Soluble in toluene, slightly soluble in hexane and alcohol and insoluble in water.

溶于甲苯，微溶于己烷和酒精，不溶于水。

Objective To study the effect of toluene on worker's humoral immune function.

目的 探讨甲苯对作业工人体液免疫功能的影响。

The experimental result showed that three byproducts was formed and the optimal condition was as follows: the molar ratio of ethylene glycol, hydrogen bromide, and acetic acid was 1:1:1.3, when ethylene glycol was 1 mol, refluxed 5 h under the action of 100 mL toluene.

结果表明：较适宜的合成条件为乙二醇1 mol， n：n：n=1：1：1.3，在带水剂甲苯(100 mL)的作用下，回流反应5 h，约4 h后分两次追加0.12×2 mol醋酸酐，合成效果最好，产率可达到95%，反应副产2-溴乙醇及少量的1， 2-二溴乙烷、乙二醇二乙酸酯和二乙二醇二乙酸酯。

This time, we do not want to colorize the image. I've dragged my Hue slider to the left to a value of -123

这次不要勾选着色，我将色相的滑标向左移到-123

A timely report from an independent prosecutor would surely be helpful in buttressing and justifying that order.

及时报告从一个独立的检察官一定会有助於支撑和合理的秩序。