甲苯

It is readily soluble in toluene, MEK, acetone and other solvents commonly used in adhesive and coating systems.

这种新的改性剂可以溶于甲苯、丁酮、丙酮和其他胶粘剂和涂料系统常用的溶剂中。

A novel method for the synthesis of α-bromo acetophenone s by the reaction of 1,3-dibromo- 5,5-dimethylhydantoin with p-toluenesulfonic acid in methanol at 20～60 ℃ was described.

报道了使用1，3-二溴-5，5-二甲基海因和对甲苯磺酸在甲醇中和20～60℃的温和条件下合成α-溴代苯乙酮的新方法。

Product has mainly engaged in alcohol-benzene toluene xylene butyl acetate ester, such as acetone acetophenone ring.

主要经营产品有甲苯二甲苯醇苯醋酸丁酯乙酯丙酮环乙酮等。

In order to sufficiently understand the reaction mechanism and so as to improve the trimellitic acid producing process.

为了充分掌握偏三甲苯氧化反应的机理和规律，为偏苯三酸生产技术的开发和设计提供依据。

Effects of reaction temperature,reaction time and mole ratio of nitric acid to aromatic hydrocarbons on performance of the catalyst were investigated.

实验结果表明，磷钨酸对低沸点芳烃液相硝化反应具有显著的催化活性，在优化的条件下，苯、甲苯和氯苯的转化率分别为98.0%，99.5%，100.0%。

The degradation situation of benzene,methylbenzene,ortho-xylene,meta-xylene and para-terphenyli is studied in aerobiosis vibration bottle and aerobiosis exposural pool by using EJD-1 and active sluge.

通过使用EJD— 1和活性污泥 2种菌源，在好氧振荡瓶和好氧曝气池中研究苯、甲苯、邻二甲苯、间二甲苯、对二甲苯的降解情况。

New process for producing high purity mesitylene by primary alkylate separation is researhed and developed and the tech economic evaluation is made.

研究开发一次烷基化分离法生产高纯度均三甲苯新工艺，并对其进行了技术经济分析评价。

The originalprocedure has subsequently been replaced by milder and more environmentallyfriendly conditions. We tried to alkylate 3,4,5-trimethoxytoluene by2-allylphenylbenzyl ether in the presence of N-bromosuccinimide.

本实验是在溴代琥珀酰亚胺的作用下使2-烯丙基苯基苄基醚产生苄正离子，苄正离子亲电进攻3，4，5-三甲氧基甲苯从而进行傅氏烷基化反应的。

The company operating a variety of perennial organic chemical raw materials, varieties include: methanol, ethanol, ethylene glycol, n-butyl alcohol, isobutyl alcohol, isopropyl alcohol, acetic acid, vinyl acetate, acetic acid acetate, acetic acid Ding resin, styrene, toluene , phthalic anhydride, xylene, acetone, butanone, cyclohexanone, DMF, sulfuric acid, methyl isobutyl ketone, glycol ether, mesitylene, octyl resin, melamine.

本公司常年经营各种有机化工原料，品种有：甲醇、乙醇、乙二醇、正丁醇、异丁醇、异丙醇、冰醋酸、醋酸乙烯、醋酸乙脂、醋酸丁脂、苯乙烯、甲苯、苯酐、二甲苯、丙酮、丁酮、环己酮、DMF、硫酸、甲基异丁基酮、乙二醇丁醚、三甲苯、二辛脂、三聚氰胺。

Lower toxicity or higher toxicity from mixtures than the expected depends on their constituents and potencies. It is very likely that the workers could be exposed to N,N-dimethylformamide, methyl ethyl ketone, and toluene in the occupational environments simultaneously.

在职场环境中极易同时暴露到二甲基甲醯胺、丁酮与甲苯，本研究主要目的是探讨共同暴露丁酮与甲苯不同浓度时，对於DMF暴露生物指标即尿中DMF 与尿中NMF 的影响，及探讨DMF混合暴露下对MEK生物侦测的影响。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。