甲苯

In these experiments, we have choosen the activated carbon as the support, and copper nitrate, copper acetate and copper sulfate were used as precursors to prepare the supported activated carbon-copper catalysts. Toluene was chosen as pollutant for activity test.

本实验选择活性碳当担体，而前驱物为硝酸铜、醋酸铜、硫酸铜制备金属活性相为铜之触媒，并假设目标污染物为甲苯来进行实验探讨。

To estimate the bioconcentration factor of benzene derivatives in fish by gas chromatography retention time, this paper measured the BCF of chlorobenzene, o-chloro-toluene, p-dichlorobenzene, m-dichlorobenzene, 1,2-dichlorobenzene, nitrobenzene, p-chloro-aniline, p-chloro-nitrobenzene, and 4-chlorodiphenyl in grass crap, and the t_R of test derivatives on the stationary phases of six kinds polarity.

为了用气相色谱保留时间估算取代苯类化合物在鱼体内的生物富集系数，测定了草鱼对氯苯、邻氯甲苯、对二氯苯、间二氯苯、邻二氯苯、硝基苯、对氯苯胺、对硝基氯苯、4-氯联苯9种取代苯类化合物的BCF和不同取代苯化合物在6种不同极性固定相上的tR，建立了tR与BCF的一元回归方程及tR一阶分子连接性指数(1XV)与BCF的二元回归估算方程。

At last, Hartree-Fock and Density Functional Theory was used to calculate the Mulliken bond orders, HOMO and LUMO. The "principle of the smallest bond order" and the "principle of the easiest transition" were selected to judge the decomposition potential of the nitration products, and the results indicated trinitrotoluene would decompose easier than other product, and it was consistent with the experimental results.

最后，采用Hartree-Fock方法和密度泛函方法计算了各硝化反应中主要有机物的Mulliken键级、最高占有轨道能和最低空轨道能，采用&最小键级原理&和&最易跃迁原理&判断出三硝基甲苯最易分解，这与实验结果一致。

Doors: imported high-quality cold rolling steel plate after embossing and wood composites made with gluten, non-deformation, non-cracking, anti-impact, green environmental protection; free use of paint, does not contain formaldehyde, toluene, free of radiation contamination; pest control, moisture , thermal insulation.

门扇：采用进口优质冷扎钢板经过压花与木质内筋复合而成，不变形、不开裂、防冲击、绿色环保；免用油漆，不含甲醛、甲苯、无辐射污染；防虫、防潮、保温隔热。

Synthesis 3,5-dihydroxytoluene by ethyl acetoacetate and diketene as material(yield 6%),by 3-methyl-4-chlorophenol and KOH as material(yield 30-40%)respectively,It was solved for product separation and purify.

分别以乙酰乙酸乙酯与双乙烯酮为原料(收率6%)、3-甲基-4-氯苯酚与氢氧化钾为原料(收率30-40%)合成了3，5-二羟基甲苯，解决了产品分离纯化问题。3-甲基-4-氯苯酚路线进行了中试，中试收率为20%。

The results showed that nitrate and sulfate were more favorable electron acceptors compared to ferric iron.

结果表明，苯、甲苯和乙苯在以硝酸根和硫酸根为电子受体、污染物初始浓度较低的条件下，降解效率可达95％，而以3价铁为电子受体或者初始浓度较高时降解效率较低。

OO from the beginning of a three-year sales of chemical raw materials, specific printing ink, printing ink, sodium hydroxide, liquid (30-50%) hydrochloric acid, electrical cleaning agents, electrical agents, detergents, bactericidal Algicide, corrosion inhibitors, scale inhibitors, polyacrylamide (cation-anion), toluene, glacial acetic acid, such as bleaching, aluminum-based industries to the production of chemical raw materials used.

从二OO三年开始化工原料的销售，具体有印刷油墨、印刷水墨、氢氧化钠、液碱（30-50%）盐酸、电器清洗剂、电器保护剂、除垢剂、杀菌灭藻剂、缓蚀剂、阻垢剂、聚丙烯酰胺、甲苯、冰醋酸等漂染、铝型才行业的生产用化工原料。

Naphthalenesulfonic acid, 3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-, monosodium salt;3-hydroxy-4-(1-hydroxy-2-naphthalenylazo-1-naphthalenesulfonic aci monos;3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-1-naphthalenesulfonic aci monos;alizarine blue black ocbn;alizarine blue black ocgn;alizarine blue black ocgp;alizarine blue ocb;azochromol blue black eb

性状描述：棕黑色粉末。溶于丙酮，不溶于甲苯，醇溶液为樱桃红色。水溶液热时为紫黑色，加盐酸后初为红棕色，而后沉淀呈棕黑色；加氢氧化钠为深蓝色，而后为樱桃红。硫酸溶液为深蓝色，用水稀释析出紫黑色沉淀。

Comparable experiments employing p-toluenesulfonyl azide demonstrated thereaction specialty of fluoroalkamesulfonyl azides.

在同其碳氢类似物如对甲苯磺酰叠氮的对比实验中，还进一步证明了氟烷基磺酰叠氮的反应特殊性。

The Maoming and Fushun oil shales were treated by 1 benificiation of organic matter with HC1 and HF, 2 extraction with toluene under supercritical state (385℃,15MPa) for converting most of the organic matter into soluble bitumens.

用两种方法研究了茂名和抚顺油页岩的有机质：一是用HCI与HF处理分离有机质后直接进行化学与仪器分析；一是用甲苯在超临界态(385℃，15MPa)下抽提，得到对有机质为75—81w%的沥青，并对沥青进行结构分析。

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。