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Separate the benzene layer with a separatory funnel.

用分液漏斗分出层。

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In benzene, re-crystallization products to buff aciculae, commodity to pale yellow.

中重结晶产品为浅黄色针状晶体,商品为浅黄色或土黄色。

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In this reaction,besides substitution products thiophenol etc,the reduction product benzene is formed.

反应中,除成笨硫酚等取代产物外,还成还原产物

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Formaldehyde, benzene, ammonia and radioactive pollution' superscale have seriously affected people's health.

甲醛、、氨气和放射性污染超标已经严重影响了人们健康。

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The free radical polymerization of VOZO in benzene solution results poly 2 vinyl 2 oxazoline(PVOZO).

对合成过程中剂及分离等问题进行了讨论。

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Molecular weight determinations on the purified material were conducted in benzene solutions by cryoscopic method.

用冰点法,液中对纯物质进行了分子量测定。

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OBJECTIVE To establish a method for detecting benzene series from macro-reticular resin in Peristrophe roxburghiana extraction.

检测红丝线提取物中大孔脂残留物量。

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Dichlorofluorobenzene is prepared by diazotizating of 2,4-dichloro aniline and substituting of 2,4-dichloro diazo benzene with fluorinion.

此概述了由2,4-二氯胺经过重氮化、置换制得2,4-二氯氟产新工艺,产品纯度达到99。

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The common absorption function of benzene and phynol in water on the series of organic soil is studied.

研究了水中系列有机膨润土上共同吸附作用。

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A strain may be defined as an organic compound containing a benzene ring plus a chromophore and auxochrome group.

染料定义为含有环与呈色官能基与辅助成色官能基化合物。

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Methyl 1 phenyl Propanone was synthesized with benzene and iso butyryl chloride by using anhydrous aluminium trichloride as catalyst.

与异丁酰氯无水三氯化铝作催化剂条件下制备基异丙基酮。

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The transalkylation of polyethylbenzene, mainly diethylbenzene and triethylbenzene, with benzene catalyzed by tungstophosphoric acid has been studied in stirred autoclave.

采用搅拌高压釜,以磷钨酸为催化剂,研究了与多乙烷基转移反应,多乙主要是二乙和三乙

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The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.

碳化过程中,聚乙烯阳离子交换环结构和烯烃基团比磺酸基团稳定。

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A survey of the health condition of 308 cases of workers exposed to benzene, toluene, xylol and mixed derivatives of benzene is presented.

本文报告了308例、甲、二甲及混合作业工人健康状况调查结果。

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The enantioselectivity of N-dodecanoyl-L-proline-3,5-dimethyl-anilide is also good, but the basic line fluctuates strongly due to containing benzene ring in its molecular structure.

虽然用N-十二酰基-L-脯氨酸-3,5-二甲基胺作添加剂,手性选择性也较好,但由于含有环,紫外吸收增强,基线波动严重。

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It was shown that the energy of interaction between the polyoxyethylene and the noncrystalline SiO2 surface was below than hexadecyl accumbent benzene sulfonate.

据此分析,聚氧化乙烯能非晶质SiO2表面形成稳定吸附且部分替换十六烷基对磺酸钠。

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This paper has studied the phthalocyanin complex of Cobalt synthesized by benzene bitter wine-urea law,and after depuration,an infrared, ultra-violet spectrograph determination is carried.

文章主要研究了酐-尿素法合成酞菁钴、经提纯并对其进行红外、紫外光谱测定、合成及表征结果表明,红外光谱表征推测结构可靠,紫外光谱分析表明有特征吸收峰之处。

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The separation of three-component system of cyclohexane,cyclo-hexene and benzene by extract rectification with a mixed solvent,comprising hexyl dicyanide and dimethyl acetylamine has been studied.

选用己二腈-二甲基乙酰胺组成混合剂,对环己烷、环己烯和组成三元体系进行了萃取精馏。

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But for benzene, when treated with SDM-A there was a turning point in its adsorption isotherm, which corresponding to the dividing point between monomolecular and multimolecular layer adsorption.

用SDM-A处理吸附时,出现折线形吸附等温线,折线转折点正好是单分子层吸附与多分子层吸附分界点。

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It was found that the compounds are adsorbed on the Ag surface through the carboxyl oxygen atoms, the benzene adopts acclivitous conformation, others lie low on the Ag surface.

胶表面上,羧基氧原子与银形成化学建,环是稍微倾斜地吸附银胶面上,其它部分则平躺吸附于银胶表面。

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One of those molecules is benzene, which gives gas its distinctive smell.

其中一是苯,它赋予气体独的气味。

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Inhaling too much benzene can break our DNA, which causes cells to die.

吸入过多的苯会破坏我们的脱氧核糖核酸,导致细胞死亡。

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The plants were put into sealed containers, and the air pumped full of chemicals including benzene and formaldehyde.

些植物被放进密封容器中,气体中充满了各化学物质,如苯和甲醛。

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And if you don't like the smell of gas, maybe that's not entirely benzene's fault.

如果你不喜欢汽油的味道,也许不完全是苯的错。

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PBS人体科学

But in benzene the ratio of these elements is a little weird.

但是在苯中,些元素的比例有点奇怪。

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Consider this molecule, a hexane with a benzene ring attached to carbon number 2.

考虑, 一个苯环连接到碳数 2 的己烷。

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It's got elevated levels of dibutoxyethanol, methane, and benzene.

亚乙基二醇二丁基 甲烷和苯的含量,严重超标。

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We can't put a benzene fire out with water.

苯的燃烧不能用水扑灭。

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犯罪心理 第2季

Well, you know what benzene is?

嗯 你知道苯是什么东西吗?

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Well, I decided to be neighbors to a place called Rubbertown. They manufacture plastics. They use large quantities chloroprene and benzene.

嗯,我决定在邻近一个叫Rubbertown的地方落脚。他们生产塑胶制品,使用大量的氯丁二烯还有苯。

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PBS人体科学

August Kekule's dream discovery of benzene's molecular shape is one of history's most famous dreams.

奥古·库勒 (August Kekule) 梦想发现苯的形状是历史上最著名的梦想之一。

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When benzene is used as an attachment, we call it a phenyl group, so this is 2-phenylhexane.

当苯用作连接物时, 我们称其为苯基, 因此是 2-苯基己烷。

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The study found the majority of the plants included in the experiment removed much of the benzene and formaldehyde from the containers.

该研究发现实验中的大部植物清除了容器内的大量苯和甲醛。

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Crash Course 综合篇

Another example: So this is a benzene with two methyl groups on it.

另一个例:所以是一个带有两个甲基的苯。

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Crash Course 综合篇

Well, it was English genius Michael Faraday who first isolated benzene in 1825 from the gas used in lamps.

好吧,是英国天才迈克尔·法拉第 (Michael Faraday) 于 1825 年首先从灯中使用的气体中离出苯。

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The simplest aromatic hydrocarbon (and one of the most common) is benzene (C6H6).

最简单的芳烃(也是最常见的一)是苯 (C6H6)。

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It's basically two benzene rings stuck together.

它基本上是两个苯环粘在一起。

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And there's anthracene, with three benzenes, which is probably the dye that's making your blue jeans blue.

还有蒽,含有三个苯, 可能是让你的蓝色牛仔裤变蓝的染料。

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SciShow 合集

That was unexpected, because D. aromatica is good at breaking down compounds like benzene and toluene, which are often used in chemical solvents.

是出乎意料的,因为 D. aromatica 擅长解苯和甲苯等化合物, 些化合物通常用于化学溶剂。

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99%不为人知的故事

And there was a recent study that actually said that the benzene produced by the stove can exceed what you see in secondhand smoke.

最近的一项研究实际上表明,炉产生的苯可能超过二手烟中的苯。

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