nitric acid的例句大全

High pure thallium iodide was made through the process of dissolving thallium in nitric acid, precipitating thallium ion by potassium iodide then subliming thallium iodide in vacuum.

以金属铊为原料，用硝酸溶解碘化钾沉淀真空升华的方法制备了高纯碘化铊，并且制备出多种球形碘化铊复合卤化物。

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The paper introduced the present situation of domestic manufacture technology of nitric acid. Techno-economic appraisal was made on dual-pressure method& one of the three manufacture technologies that were compared and analyzed in this paper.

分析了国内稀硝酸生产的现状，对生产稀硝酸的三种加压法工艺进行了较充分的比较，并对一套双加压法生产装置进行了技术经济评价。

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The process conditions are studied for the synthesis of o-nitro-p-cresol using p-cresol and nitric acid in dichloromethane. The effects of reaction time, temperature, degree of dispersion and concentration of nitric acid were optimized. The yield is up to 82.3%.

考察了用对甲酚和硝酸在二氯甲烷中合成邻硝基对甲酚的工艺条件，对影响反应的因素，如分散度、反应时间、反应温度、硝酸浓度等进行了优选，产率达到了82.3%。

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The FeSO_4 obtained by reduction is purified, adding to NH_4OH-NH_4HCO_3 solution containing organic additives, precipitated and finally washed and then calcined at 900 ℃ for 2 hours. The calcined product is washed using dilute nitric acid and hydrofluoric acid, obtaining high-purity α-Fe_2O_3.

还原后得到的硫酸亚铁经过净化除杂，滴加到含有适量有机添加剂的沉淀剂NH4OH-NH4HCO3中，沉淀洗涤干燥后900℃煅烧2h，煅烧产品再用稀硝酸和氢氟酸洗涤，得到高纯球形-αFe2O3。

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The hydrofluoric acid-hydrochloric acid-nitric acid-vitriol ( HF-HCl-HNO_3-H_2SO_4) system was used for the determination of 15 rare earth elements in the ash of plant by inductively coupled plasma mass spectroscopy ( ICP-MS).

采用高温灰化植物样本，氢氟酸盐酸硝酸硫酸一次溶解植物灰分，电感耦合等离子体质谱法（ICP MS）同时测定15种稀土元素。

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Steel samples were dissolved with nitric acid, hydrochloric acid and hydrofluoric acid by electrothermal heating or microwave digestion.

钢铁样品用硝酸、盐酸、氢氟酸在电热板上加热或微波消解，溶液经稀释后未经基体分离，未加内标直接用电感耦合等离子体质谱法（ICP-MS）测定。

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When nitric acid is poured on copper, a Brown vapour gives off.

将硝酸倒在铜上，会散发出一种棕色的蒸气。

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Through thermodynamics analysis, manganese dioxide is hard to react with nitric acid and sulfuric, and the process is feasible.

提出拌酸熟化工艺处理高磷贫锰矿，经热力学理论分析，二氧化锰与浓硝酸和浓硫酸很难发生反应，该工艺处理高磷锰矿可行。

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However, about 50% yield of pure keto RDX was separated directly via using nitric acid as a nitrating media.

使用纯硝酸硝化剂，RDX酮的得率50%左右。

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The Integrated Experiment Plant of Copper and Thick, Thin Nitric Acid Reaction

铜与浓、稀硝酸反应的一体化实验装备

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The paper points out the lack in the copper and thick, thin nitric acid reaction experiment, analyzes the difference in the two experiments, introduces the integrated experiment plant, experimental method and strongpoint.

指出了铜与浓、稀硝酸反应实验的不足，分析了两实验的异同点，介绍了铜与浓、稀硝酸反应的一体化实验装置、实验方法及实验优点。

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Scale-up test for treatment of Bi organic wastewater by nitric acid oxidation process

硝酸氧化法处理BI有机废水工艺放大试验

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Study of reduction mechanism of nitric acid on inert platinum cathode

硝酸在惰性电极上还原机理的研究

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The extraction of uranium from nitric acid solution with 5208 extractant

用5208萃取剂从硝酸溶液中萃取铀

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The effect of aqueous nitric acid concentration, extractant concentration and temperature on distribution ratio has been investigated.

讨论了在不同稀释剂中硝酸浓度、萃取剂浓度及温度对D（U（Ⅵ））的影响。

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The results show that the reaction heat of 5-aminotetrazole is 130. 35 kj · mol-1. The most befitting quantity of nitric acid is equimolecular.

结果表明：5-氨基四唑合成反应的摩尔生成热为130.35kJ·mol-1。

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general situation of nitric acid industry and its developing trend

硝酸工业的概况及发展趋势

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Technical Improvement of Frozen Brine Section in Nitric Acid Plant

直硝装置冷冻盐水站工艺改进

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first came the discovery that nitric acid made the rubber much better, and in short time he was doing a small business in rubber shoes produced in this way.

首先他发现一种氮酸能使橡胶质量大为改善，不久他就经营起一个小企业，用这种方法生产胶鞋。

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The test specimen is dissolved by nitric acid or H · F acid.

试样用硝酸、氢氟酸溶解。

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