氢氧化钠

2 The analysis step by 125mL separatory funnel, a fartoo 0.1mL cadmiun forcultivation added liquid (equivalent 1 μ g cadmiun) and 50mL acetate (4%), and the other one is to join the 50.0mL sample lixivium, separatory funnel and 2mL in the seignette solution,-amoxycillin sodium hydroxide solution and potassium cyanide-2mL hydroxylammonium hydrochloride solution, each adding a reagent shake after.

9.2.2 分析步骤取125mL分液漏斗两只，一只加入0.1mL镉标准使用液(相当1μg镉)及50mL乙酸(4%)，另一只加入50.0mL样品浸泡液，分别向分液漏斗中各加2mL酒石酸钾钠溶液，10mL氢氧化钠－氰化钾溶液及2mL盐酸羟胺溶液，每加入一种试剂后均须摇匀。

XRD measurements indicated that the product powders are mainly the skutterudite with the cell parameter α=7. 768-7. 803〓. From the ED patterns of the whiskers and nanowires, we can find that the whiskers and nanowires are single crystals.

采用自行设计的水热-还原-合金化的方法以白磷、氢氧化钠和三氯化铁为原料分别在200-240℃和160-180℃制备了直径为0.5-4μm长径比为10-20的Na〓Fe〓P〓晶须材料和直径是20-80nm长度是500-4000nm的NaFe〓P〓纳米棒。

Preliminary experiments show that the rate of condensation of sulfanilic acid with 4-[4-(4-Ni-tro-2-sulfostyryl)-3-sulfophenyl-azo]-3-methyl-1-phenyl-5-pyrazolol is slower than those of p-phenylene diamine a...

对氨基苯磺酸和4-[4-(4-硝基-2磺基苯乙烯)-3-磺基苯偶氮]-1-苯-3-甲-5-羟吡唑在稀的氢氧化钠溶液中缩合的速度，较对苯二胺及对氨基苯甲酸为慢。

Sulfuric acid was sulphonation reagent, add the sulfuric acidquantity was 8%, reaction temperature was 60~65℃.The reaction occursbetween the feed oil and sulfuric acid,then add 30% of sodium hydroxidesolution conducted neutralization in the Pyrex standard react kettle,when the reactionfinished ,draw out the products by funnel,then the products react with 8%clay to refine received the sulphonation refining oil so as to review property andreceive rate of the shallow sulphonation refining oil .By the using the sulphonationrefining oil to blend lubricant,its quality is on-specification .

为验证其可行性，首先在实验室进行浅度磺化小试，原料油采用新疆原油经常压蒸馏、减压蒸馏、溶剂精制、溶剂脱蜡后的减压二、三线脱蜡油，发烟硫酸作为磺化剂，发烟硫酸加入量8%，反应温度60～65℃，用三口圆底耐热玻璃标准反应釜对原料进行发烟硫酸磺化，加入量30%氢氧化钠中和，分液漏斗抽提，在烧杯内加入量8%白土进行精制得到磺化抽余油，考察浅度磺化抽余油性质和收率，用磺化抽余油调合润滑油质量合格。

In low-temperature superalkaline condition,the nuclei of zirconia were synthesized simply by stirring and milling the solid mixture of sodium hydroxide and zirconium oxychloride.

摘 要：以分析纯氢氧化钠和氯氧化锆为原料，通过低温强碱合成法简单、方便地合成了二氧化锆晶核。

In low-temperature superalkaline condition,the nuclei of zirconia were synthesized simply by stirring and milling the solid mixture of sodium hydroxide and zirconium oxychloride.

以分析纯氢氧化钠和氯氧化锆为原料，通过低温强碱合成法简单、方便地合成了二氧化锆晶核。

The optimum condition of preparing process were obtained: the amount - of - substance ratio of sodium hydroxide and eerie sulfate tetrahydrate was 4.8:1 ,the quantity of PEG was 8 mL in reaction and 7 mL in washing, absolute alcohol was 10 mL in washing, irradiation time was 6 min, constant microwave irradiation pressure was 0.14 MPa, microwave power was 232 W, the ultrasonic wave dispersing time was 10 min and the microwave drying time was 10 min.

通过考察制备过程中的各个影响因素，得到了制备纳米二氧化铈的最佳工艺条件：氢氧化钠与四水硫酸高铈物质的量比为4.8：1；聚乙二醇的反应用量为8mL，洗涤用量为7mL；无水乙醇的洗涤用量为10mL；微波恒压时间为6min；微波压力为0.14MPa；微波功率为232W；超声波分散时间为10min；微波干燥时间为10min。

In the presence of the phase transfer catalysts such as tetramethylammonium bromide, tetraethylammonium bromide or polyethylene glycol(MW 400 and 6,000),lithium hydroxide is the best alkali among lithium hydroxide ,sodium hydroxide and potassium hydroxide.

研究表明在溴化四甲基铵、溴化四乙基铵、聚乙二醇（分子量为6，000）和聚乙二醇（分子量为400）相转移催化体系中，氢氧化锂最好，氢氧化钾次之，氢氧化钠最次。

The processing principle for the preparation of tribasic lead sulphate from bismuth hydrometallurgy waste residue by ammonium hydrogen carbonate transformation-nitric acid leaching-lead deposition with sulphuric acid-sodium hydroxide synthesis is introduced.

介绍了铋冶炼浸渣采用碳酸氢铵转化—硝酸浸出—硫酸沉铅—氢氧化钠反应合成三碱式硫酸铅的工艺原理。

This research uses the triethyl phenmethyl ammonium chloride to make the catalyst, take double phenol A, the epichlorohydrine, the sodium hydroxide as raw material, to affected factors and so on effect allocated proportion, temperature, reaction time to conduct the full research.

本研究采用三乙基苄基氯化铵作催化剂，以双酚A、环氧氯丙烷、氢氧化钠为原料，对影响效果的配比、温度、反应时间等因素进行了充分的研究。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。