A. 化學實驗英文翻譯 求解答
大意應該是:這個反應需要在氮氣保護下,加熱迴流進行19個小時。這個氮氣流是用一個充滿氮氣的、有閥門控制的氣球來提供。 原文的翻譯需要很強的語言組織,限於水平,只能翻譯到此了。
B. 幫忙翻譯一段英文有機化學實驗資料
實驗部分
一般程序還原胺化
醛與甲胺
鈦(四)異丙醇(2毫升,6.6毫摩爾)被添加到一個商業
提供解決方案,甲醇(2米,7.5毫升甲胺)
其次是起點醛(5毫摩爾)增加。反應
混合物在室溫下攪拌5小時,之後鈉
硼(0.2克,5毫摩爾)增加和由此產生的混合物
再進一步激起每小時2期當時的反應是淬火
由水(毫升),此外,由此產生的無機沉澱物是
過濾和乙醚洗滌(20毫升)。有機層
分開,部分水進一步乙醚提取
(20毫升× 2)。合並乙醚提取,干(碳酸鉀)和
在真空濃縮,使N -甲基高純度仲胺。
一般程序還原胺化
酮與甲胺
對於酮的還原氨化,同樣的一般程序
除了採用合並乙醚提取液下
用鹽酸(2男,10毫升2)分離提取到中性
材料。酸性溶液含有的N -甲基化
胺鹽酸鹽saltwas慢了鹼性(pH值- 10)
另外的(10%,瓦特/ V)的氫氧化鈉水溶液與二乙酯提取
醚(20毫升× 2)。合並後的有機提取物的乾燥(碳酸鉀)
並在真空濃縮,使純N -甲基烷基胺。
郁悶,你不會找一個可以翻譯的網站啊~~~~~~···
C. 有誰知道一些化學實驗室里工具的英語翻譯
試管 test tube 試管架 test tube holder漏斗 funnel 分液漏斗
separatory funnel燒瓶 flask 錐形瓶 conical flask燒杯 beaker 不銹鋼杯 stainless-steel beaker天平 balance/scale 分析天平 analytical balance酒精燈alcohol burner 酒精噴燈 blast alcohol burner塞子
stopper量筒 graated flask/measuring cylinder洗瓶 plastic wash bottle滴定管 burette玻璃活塞
stopcock攪拌裝置 stirring device 冷凝器 condenser 試劑瓶 reagent bottles 蒸發皿 evaporating dish
台秤 platform balance 游碼 crossbeams and sliding weights
容量瓶 volumetric flask/measuring flask移液管 (one-mark) pipette刻度移液管 graated pipettes洗耳球 rubber suction bulb玻棒 glass rod蒸餾燒瓶 distilling flask碘量瓶 iodine flask
坩堝 crucible表面皿 watch glass稱量瓶weighing bottle
研磨缽 mortar研磨棒 pestle瑪瑙研缽agate mortar瓷器 porcelain 白細口瓶flint glass solution bottle with stopper滴瓶 dropping bottle小滴管 dropper 蒸餾裝置distilling apparatus蒸發器 evaporator 升降台lab jack鐵架台iron support
萬能夾extension clamp蝴蝶夾double-buret clamp 雙頂絲clamp regular holder 止水夾flatjaw pinchcock
圓形漏斗架cast-iron ring移液管架pipet rack試管架tube rack 沸石boiling stone 橡膠管rubber tubing
葯匙lab spoon鑷子forceps坩堝鉗crucible tong剪刀scissor
打孔器stopper borer石棉網asbestos-free wire gauze電爐絲wire coil for heater脫脂棉absorbent cottonph
ph試紙 universal ph indicator paper濾紙 filter paper稱量紙weighing paper擦鏡紙wiper for lens
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秒錶stopwatch量杯glass graates with scale
白滴定管(酸) flint glass burette with glass stopcock棕色滴定管(酸) brown glass burette with glass stopcock白滴定管(鹼) flint glass burette for alkali棕色滴定管(鹼) brown glass burette for alkali 比重瓶specific gravity bottle
水銀溫度計mercury-filled thermometerph計ph meter 折光儀refractometer 真空泵vacuum pump 冷、熱浴bath 離心機centrifuge
口罩respirator防毒面具respirator、gasmask
磁力攪拌器magnetic stirrer電動攪拌器power basic stirrer 烘箱oven閃點儀flash point tester 馬弗爐furnace電爐 heater 微波爐電熱套heating mantle
更多內容 可以在網路文庫里找。
D. 求英語大神幫忙翻譯化學實驗報告一篇。
Aluminum potassium sulfate preparation and crystal growth
One, the purpose of the experiment
1 understand the principle and process of procing aluminum sulfate;
2 further understanding of the Al and Al (OH) 3 sexes;
3 ecation principles and methods of crystals from solution.
Two, the experimental principle
The sulfate aluminum with alkali metal (K2SO4) forming aluminum potassium sulfate salt.
Aluminum potassium sulfate (K2SO4 · Al2 (SO4) 3 · 24H2O) commonly known as alum, it is a kind of colorless crystals, Yi Rong in the water, and the hydrolysis of Al (OH) 3 casse. It has a strong absorption performance, aluminum salt instry is important, as water purifying agent, filling agent in papermaking etc..
This experiment using aluminum dissolved in sodium hydroxide solution, four hydroxy aluminum acid sodium proction of soluble metal aluminum, otherimpurities are insoluble, filter to remove impurities. Then using H2SO4 to regulate the pH value of the solution for 8-9, namely Al (OH) 3 precipitate,separation, adding H2SO4 in the precipitation, the Al (OH) 3 into Al2 (SO4) 3,and then made into Al2 (SO4) 3 crystals, Al2 (SO4) 3 crystal and K2SO4 crystalrespectively into saturated solution, mixing with alum generated. The reaction is as follows:
2Al + 2NaOH + 6H2O = 2Na[Al (OH) 4] + 3H2
[Al (OH) 4]+ H+ = Al (OH) 3 + H2O
2Al (OH) 3 + 3H2SO4 = Al2 (SO4) 3 + 6H2O
Al2 (SO4) 3 + K2SO4 + 24H2O = K2SO4 · Al2 (SO4) 3 · 24H2O
Cultivation of alum crystal: when there is K2SO4 · Al2 (SO4) 3 · 24H2O crystal precipitation, filtering to obtain crystal, choose structured as a seed, put in the filtrate, the upper dish, let the solution of natural evaporation, crystallization will graally grow up, become a large single crystal, crystal has eight surface morphology. In order to make the seeds grow large single crystal, it is important not to solution temperature change is too big, make water slow evaporation. In addition to grow large crystals, crystal system can also be generated with the nylon rope, suspended in solution. Such crystals in the growth rate is not affected, the crystals formed more rules.
Three, experimental equipment
Apparatus and materials: beaker, electronic scales, funnel, the evaporating dish,alcohol lamp, three tripod, asbestos, matches, glass funnel, cylinder, filter paper,pH paper, nylon line.
Reagents: Al chip (C.P), NaOH (C.P), K2SO4 (C.P), H2SO4 (3mol · L - 1, 1:1),BaCl2 (0.1 mol · L - 1).
Four, the experimental steps
1.Al (OH) 3 generation
Take 2.3 grams of NaOH solid, into a 200mL beaker, add 30mL distilled water solution. Take 1 grams of aluminum scrap, in batches into the solution (reaction,prevent spills, should be carried out in a fume hood), to no longer have bubbles,indicating the reaction is completed, and then adding distilled water, the volume is about 40mL, filtration. The filtrate into a 200mL beaker, heated to boiling, withcontinuous stirring, add 3mol · L - 1H2SO4, the solution of pH 8 - 9, continue to stir boiled a few minutes, and then filtration, washing and precipitation with boiling water, until the washing liquid pH value reced to about 7, dry.
2.Al2 (SO4) 3 preparation
The prepared Al (OH) 3 into the beaker, under continuous stirring, adding 1:1,H2SO4, and water bath heating. When the solution became clear, stop adding sulfuric acid, Al2 (SO4) 3 solution. The concentrated solution for the 1/2 of the original volume, removed, water cooling to room temperature, the crystallization,filtration, the crystal blot with the filter paper, weighing.
Culture and crystal 3 alum system
The weighing of the aluminum sulfate crystal is arranged on the small beaker,with saturated solution at room temperature. The other weigh K2SO4 solid, alsowith the same volume of saturated solution, and then an equal volume of twosaturated solution phase mixing, stirring evenly. After placement, there will bealum crystal precipitation. Select the filter, structured as a seed, put in thefiltrate, the upper dish, let the solution of natural evaporation, crystallization will graally grow up, become a large single crystal, crystal has eight surfacemorphology.
In order to make the seed generation of large single crystal, it is important not tosolution temperature change is too big, make water slow evaporation. To generate a large crystal, crystal system can also be generated with the nylon rope, suspended in solution. Such crystals in the growth rate is not affected.