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Ethyl cellulose was synthesized successfully in one step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.

采用纤维素与过量的氯乙烷及氢氧反应,以甲苯为稀释剂,用法成功地合成了乙基纤维素。

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The mixture was refined by sodium sulfide and sodium hydroxide to afford an O,O-diethyl thiophosphoryl chloride at a purity of 99%.

该品通过精制工艺的改进,采用和氢氧的混合物进行处理,得到纯度≥99%的O,O-二乙基代磷酰氯。

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The assay of content of methoxyamine hydrochloric acid using phenolphthalein indicaor and NaOH as titrant was developed.

提出了以酚酞为指示剂,氢氧为滴定剂测定甲氧胺盐酸盐含量的方法。

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The sample was molten and decomposed with sodium peroxide,leached and acidified with hot water and constant-volumed.

试样以过氧熔融分解,热水浸取、酸,定容。

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经济学人-科技

It is composed of what sounds like a bizarre mixture: fly-ash, a fine-grained waste product from coal-fired power stations; carbon nanotubes, cylindrical molecules made of elemental carbon; and two binding agents, sodium silicate and sodium hydroxide.

煤灰,火力发电厂排放的细颗粒废弃物;碳纳米管,即柱状的碳分子;还有两种黏合剂:硅酸钠和氢氧化钠。

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科学大揭秘

However, in terms of general usage, the word 'bleach' is used to refer to common household bleach, which consists of 3-8% sodium hypochlorite and trace amounts of sodium hydroxide.

就一般用法而言,“漂白剂”一词通家用漂白剂,由3-8%的次氯酸钠和微量的氢氧化钠组成。

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Crash Course 综合篇

As well as strong bases, like sodium and potassium hydroxide.

以及强碱,如氢氧化钠和氢氧化钾。

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SciShow - Chemistry

You could technically have an even higher pH. A really high concentration of sodium hydroxide in water can have a pH of 15, which means there’s only 1 hydrogen ion for every 100 million hydroxide ions.

理论上你可以拥有更高的pH值。中极高浓度的氢氧化钠可以达到pH 15,这意味每1亿个氢氧根离子中只有一个氢离子。

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博兹曼科学——化学

And in that remember we're looking at the amount that we have to add of a certain solution, in this case is was sodium hydroxide.

记住, 我们正在考虑必须添加的特定溶液的量, 在这种情况下氢氧化钠。

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经济学人 Science and technology

This is done by soaking them in water or brine or brine followed by a solution of sodium hydroxide known as lie.

这通过将它们浸泡在中中,然后再用一种称为碱液的氢氧化钠溶液来完成的。

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博兹曼科学——生物

Or some of the cephalopods like some of the really toxic octopi also have this tetrodotoxin inside it and shuts them down.

某些头足类动物,比如一些剧毒的章鱼,体内也含有这种四氧化钠毒素,从而使其瘫痪。

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Chubbyemu胖鸸鹋

These chemicals are Sodium hydroxide, which is a base.

氢氧化钠,它一种碱 碱。

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艺术烹饪南

Supposedly, this alters the chemical composition of the baking soda to make it perform more like lye.

据说,这会改变小苏打的化学成分,使其更像氢氧化钠的效果。

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化学 Crash Course

So that's like, 294 Kelvin, and now I shall add my 100 mL of sodium hydroxide.

所以那大约294开尔文,现在我将加入100毫升的氢氧化钠。

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博兹曼科学——生物

Tetrodotoxin is found in lots of other animals.

四氧化钠毒素存在于许多其他动物体内。

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化学 Crash Course

Remember that we can look up the standard enthalpy of formation for all the products and reactants in the back of a textbook or online, the chemical reaction between hydrochloric acid and sodium hydroxide produces liquid water and sodium chloride.

记得我们可以在教科书的后面在线查找所有产物和反应物的标准生成焓,酸和氢氧化钠之间的化学反应会产生液态和氯化钠。

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艺术烹饪南

The real way to do this is to use a food grade lye, but we're doing a work around of baking soda that has been previously baked in the oven at 250 degrees Fahrenheit for an hour.

真正的方法使用食品级氢氧化钠,但我们这里用的之前在烤箱中以250华氏度烘烤了一小时的小苏打作为替代。

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经济学人 Science and technology

She then left the olives to soak and sample them from time to time until 273 days had passed This being the normal period for which olives are stored in brine prior to processing with lie.

她然后让橄榄浸泡,并不时品尝,直到273天过去。这橄榄在用氢氧化钠处理前,通常在中储存的正常时间。

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博兹曼科学——化学

If instead of adding 30.0 milliliters of 1.0 molar sodium hydroxide, let's say we had to add 25.0 milliliters of a 0.5 molar sodium hydroxide solution.

如果不添加30.0毫升1.0摩尔氢氧化钠, 假设我们必须添加25.0毫升0.5摩尔氢氧化钠溶液。

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博兹曼科学——化学

Remember I told you it's 1.0 molar sodium hydroxide solution.

记得我告诉过你这1.0摩尔氢氧化钠溶液。

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化学 Crash Course

The standard enthalpy of formation for hydrochloric acid is -167.2 kJ per mole; for sodium hydroxide it's -469.15 kJ per mole; for liquid water it's -285.8; and for sodium chloride it's -407.27.

酸的标准生成焓-167.2千焦每摩尔;氢氧化钠的-469.15千焦每摩尔; 液态的-285.8千焦每摩尔; 氯化钠的-407.27千焦每摩尔。

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博兹曼科学——生物

But it's kind of an interesting story of how they took this one person, fed him some tetrodotoxin poison and supposedly kept him as a zombie for years.

但这背后其实有一个颇为有趣的故事:他们找到一个人,给他喂食了四氧化钠毒素, 据称将其变成了僵尸, 并维持了多年。

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化学 Crash Course

(mumbling) And now I'm going to put the same amount of sodium hydroxide solution.

(咕哝)现在我要加入相同量的氢氧化钠溶液。

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博兹曼科学——化学

As we add the sodium hydroxide, the pH is going to start to climb gradually.

当我们添加氢氧化钠时,pH 值会开始逐渐上升。

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