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The isopropyl chloracetate was synthesized by esterification of chloracetic acid with isopropyl alcohol using aluminium phosphotungstate as catalyst.

以氯乙酸为原料,磷钨酸铝作催化剂进行酯化反应,成氯乙酸酯。

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A new path for the preparation of leaf alcohol with 3-chloropropanol, triphenylphosphine and propionaldehyde through Wittig reaction was studied.

本文研究了以3-氯,三苯基膦醛为原料利用威蒂希反应成叶醇的新路线。

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This paper texted the process to prepare metadoxine from vitamine B6 hydrochloric acid salt ,pyroglutamic acid and isoproanol.

本文以维生素B6氯化氢盐、焦谷氨酸为原料,固相成美他多辛,纯度达96.3%。

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Aluminum propoxide for the Tishchenko condensation of propanal to propyl propionate is prepared from aluminum powder and propanol.

成出的铝为催化剂,无水氯化锌为助催化剂,用成了酯,收率可达92%,选择性可达93%。

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Isopropyl cinnamylate was synthesized by the esterifiestion of isopropyl alcohol with cinnamic acid in the presence of potassium bisulfate monohydrate.

用硫酸氢钾催化肉桂酸与的酯化反应,成了肉桂酸酯。

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The content of free acetic acid in cigarette smoke condensates was determined by GC-MS with isopropyl alcohol as the solvent and nonanol as the internal standard.

为溶剂,壬醇为内标,采用气相色谱-质谱法分析了卷烟烟气总粒相物中的游离乙酸,乙酸测定结果的相对标准偏差小于1%,平均回收率为99。

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Two kinds of products can be obtained in the addition reaction of benzaldoxime with propinol, in which 3-hydroxymethyl-dihydroisoxazol is the main product when reaction equilibrium is reached.

的两种取向对应着加成反应的两种产物,反应达到平衡后,3-羟甲基二氢恶唑为主要产物。

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But ethanol and isopropanol are teeny.

但是乙醇和异丙醇很小。

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Vox 观点

They also recommended phenylpropanolamine and pseudoephedrine.

还推荐丙醇胺和伪麻黄碱。

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Vox 观点

Phenylpropanolamine was generally considered unsafe by 2000 because it caused some hemorrhagic strokes.

到 2000 年,苯丙醇胺被普遍认为是不安全的,因为它会导致出血性中风。

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TED演讲(视频版)双语精选

We looked at additives to feed, such as 3-NOPs, reduce emissions by about 30 percent.

研究的添加剂,比如3-NOPS(3-硝基氧丙醇),可以减少 30% 的排放。

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But now surround it with a high concentration of an alcohol, like the ethanol or isopropanol found in most hand-sanitizers.

但是现在,我浓度酒精,也就是多数免洗洗手液都含有的乙醇或异丙醇裹住它。

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Rubbing alcohol's real name is isopropyl alcohol.

真名是异丙醇 ISO。

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Chubbyemu胖鸸鹋

But ALCOHOL GROUPS interact with water, because water is also made of hydrogen and oxygen.

与水相互作,因为水也由氢和氧组成,异丙醇的名称。

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Usually, markers use ethanol, which is the kind of alcohol people drink, or isopropanol — aka rubbing alcohol — because they evaporate quickly.

通常来说,马克笔使的是乙醇,也就是人喝的那种酒精,或异丙醇,也称为医酒精,因为它会迅速蒸发。

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Usually, markers use ethanol, which is the kind of alcohol people drink, or isopropanol—aka rubbing alcohol—because they evaporate quickly, which means it's harder to accidentally smudge whatever you've just written.

通常记号笔会乙醇或异丙醇制作——乙醇是一种可食酒精,而异丙醇又名医酒精。这是因为它挥发较快,无论你刚写下什么,都没那么容易无意中抹脏。

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202321

11.An 'artificial leaf' powered by sunlight has been developed by the University of Cambridge scientists, converting CO2 and water into ethanol and propanol, providing clean, car-ready liquid fuels.

11. 剑桥大学的科学家开发出一种由阳光驱动的“人造树叶”,可将二氧化碳和水转化为乙醇和丙醇,从而提供清洁、可于汽车的液体燃料。

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