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1.Sodium phenolate and acetophenone can be obtained by adding sodium hydrate into azeotrope.

1.共沸物中加入氢,分离出酚钠盐和苯乙酮。

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

2.试样以熔融分解,热水浸取、酸,定容。

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

3.提出了以酚酞为示剂,氢为滴定剂测定甲胺盐酸盐含量法。

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

4.该粗品通精制工艺改进,采用硫钠和氢混合物进行处理,得到纯度≥99%O,O-二乙基硫代磷酰氯。

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

5.采用纤维素与氯乙烷及氢反应,以甲苯为稀释剂,用一步法成功地合成了乙基纤维素。

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Crash Course 综合篇

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

以及强碱,如氢和氢钾。机翻

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Crash Course

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

(喃喃自语)现在我要放等量的氢溶液。机翻

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Chubbyemu胖鸸鹋

3.These chemicals are Sodium hydroxide, which is a base.

,它是一种碱 碱。

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Crash Course

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

就像是 294 开尔文,现在我要添加 100 mL 氢机翻

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Crash Course

5.Then, there's sodium hydroxide, another substance that I wouldn't wish to be on my worst foe, although I'm glad we have it.

然后是氢,这是我最不希出现在我最大敌身上的另一种物质, 尽管我很高兴我们拥有它。机翻

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大揭秘

6.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”一词是指普通家用漂白剂,由3-8%的次氯酸和微量的氢组成。

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经济-

7.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:硅酸和氢

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Crash Course

8.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.

盐酸的标准生成焓为-167. 2 kJ/mol; 对于氢,它是每摩尔 -469. 15 kJ; 对于液态水, 它是-285. 8; 对于氯, 它是 -407. 27。机翻

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SciShow - Chemistry

9.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.

从技术上讲,您可以拥有更高的 pH 值。水中非常高浓度的氢的 pH 值为 15,这意味着每 1 亿氢根离子中只有 1 个氢离子。机翻

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Crash Course

10.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.

请记住, 我们可以在教书后面或网上查找所有产品和反应物的标准生成焓,盐酸和氢之间的反应生成液态水和氯机翻

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