查询词典 toluene

65 The methyl group on the benzene ring greatly facilitates the nitration of toluene.

苯环上的甲基使甲苯非常易于硝化苯环上的甲基使甲苯非常易于硝化。

In this paper,the detailed preparation process of gas chromatographic column for separating benzene series was introduced,the optimum column temperature and flow rate of carried gas were selected for separation the mixture of cyclohexane,benzene and toluene,and the column performance has been studied in respects to column efficiency and separating size.

本文主要介绍了气相色谱柱的详细制备过程，并以环已烷、苯和甲苯的混合物的分离为例，选择了最佳的操作条件。同时从柱效率和分离度两方面考察了该色谱柱的柱性能。

Suggest what the metabolite might be, and why the metabolism of toluene is different from that of benzene.

说明代谢物可能是什么，并且说明为什么甲苯的代谢物和苯的代谢物不同。

As a result the main component of each sample is fourth ketone, toluene, benzine to wait, its acute noxiousness classifications all be low poison.

结果各样品的主要成份为丁酮、甲苯、汽油等，其急性毒性分级均为低毒。

The oil removes the benzole (a mixture of benzene, toluene and xylene) from the gas stream.

油将除去气流中的粗苯(苯、甲苯、二甲苯的混合物)。

Suitable water-immiscible organic solvents include aromatic hydrocarbons, eg toluene, xylene, naphthalene, tetrahydronaphthalene and methyl naphthalene; chlorinated aromatic hydrocarbons, eg chlorobenzene, fluorobenzene, chloronaphthalene and bromonaphthalene; esters, eg butyl acetate, ethyl acetate, methyl benzoate, ethyl benzoate, benzyl benzoate, butyl benzoate, phenylethyl acetate, butyl lactate, benzyl lactate, diethyleneglycol dipropionate, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, di(2-ethylhexyl) phthalate; alcohols having six or more carbon atoms, eg hexanol, octanol, benzyl alcohol, phenyl ethanol, phenoxy ethanol, phenoxy propanol and phenoxy butanol; ethers having at least 5 carbon atoms, preferably C 5-14 ethers, eg anisole and phenetol; nitrocellulose, cellulose ether, cellulose acetate; low odour petroleum distillates; turpentine; white spirits; naphtha; isopropylbiphenyl; terpene; vegetable oil; mineral oil; essential oil; and natural oil; and mixtures of any two or more thereof.

适用于水互溶的有机溶剂包括芳香族碳氢化合物，如甲苯，二甲苯，萘，四氢萘和甲基萘；氯代芳香族碳氢化合物，如氯苯，氟，氯萘和萘；酯类，如醋酸丁酯，醋酸乙酯，苯甲酸甲酯，苯甲酸乙酯，苄酯，苯甲酸正丁酯，苯，醋酸丁酯乳酸，乳酸苄，二甘醇二丙酸酯，邻苯二甲酸二甲酯，邻苯二甲酸二乙酯，邻苯二甲酸二丁酯，二（2乙基己基）酯；醇有6个或更多碳原子，如己醇，辛醇，苯甲醇，苯乙醇，苯氧基乙醇，丙醇和苯氧基苯氧丁醇；醚至少有5个碳原子，最好荤5-14醚，如苯甲醚和phenetol；硝化棉，纤维素醚，醋酸纤维素，低气味石油蒸馏；松节油；白酒，石脑油isopropylbiphenyl；萜类，植物油，矿物油，挥发油；和天然油，以及任何两个或两个以上其混合物。

Methods: Based on national standard, detected n-hexane, benzene, toluene, dimethylbenzene, ethyl acetate, butyl acetate and butanone in 450 factories.

根据中华人民共和国国家标准，对昆山市的450家接触正己烷、苯、甲苯、二甲苯、乙酸乙酯、乙酸丁酯、丁酮7种有机物的企业车间空气进行采样检测。

The vapor liquid equilibrium data for butanone/toluene/PMMA and butanone/acetone/PMMA systems at 308.15K have been measured.

结果显示，由于甲苯的加入，丁酮在PMMA中的溶解性有了提高，而丁酮

In this study, the constant volume visual method is used to measure the critical point properties of CO 2+toluene, CO 2+cyclohexane, CO 2+ n butyraldehyde, CO 2+ i butyraldehyde, CO 2+methanol and CO 2+ethanol binary systems.

采用固定体积可视观察法测定了 CO2 +甲苯、CO2 +环己烷、CO2 +正丁醛、CO2 +异丁醛、CO2 +甲醇及 CO2 +乙醇二元体系的临界点性质，为超临界萃取和化学反应提供基础数据。

Three kinds of novel N-heterocyclic carbene allyl palladium complexes (Catalyst 1, 2 and 3) were synthesized. Norbornene polymerizations were carried out using three catalysts activated with methylaluminoxane in toluene.

研究了以3种N-杂环卡宾螯合烯丙基钯配合物1、2和3为催化剂，甲苯为溶剂，甲基铝氧烷为助催化剂催化降冰片烯的聚合。

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。