查询词典 barium

The good results are achieved by deeply-process of by-product hydrochloric acid through these technology improvement methods of resin exchange,Barium chloride settlement and oxide reduction.

曼海姆工艺副产盐酸存在着硫酸盐和氧化物超标的问题，通过工艺技术的改进，利用树脂交换、BaCl_2沉降、氧化物还原对副产盐酸进行深加工，效果良好。

Adding acidified barium chloride solution (BaCl2 + HCl), SO42 reacts to form a white solid.

加入酸化氯化钡溶液(BaCl2 + HCl)， SO42 反应生成白色沉淀。

Results Besides the action of conduction anesthesia,chlordimeform has the cardiovascular toxicity and the antiarrhythmic action induced by barium chloride,parallel to 2,6-dimethyl aniline.

结果 杀虫脒有局部麻醉作用，杀虫脒和利多卡因的代谢物2.6-二甲基苯胺都有心血管毒性和抗氯化钡诱发的心律失常作用。

Keywords Conductance titration;Water;Sulfate radical;Barium chloride;Secondary derivative.

电导滴定；水；硫酸根；氯化钡；二次微商

In this paper,the method for measuring water soluble Sulphate in soil by Barium Chromate Spectrophotometry is discussed as well as the experiment conditions about the rate of water soil and vibration time.

介绍铬酸钡分光光度法测定土壤中水溶性硫酸盐的分析方法，并讨论了水土比、振荡时间等实验条件。

Methods A series of improved experiments on barium chromate spectrophotometry without heating and the experiments of precision and accuracy,as well as comparison of experimental data between the improved method and the National Standard Method were carried out.

方法采用不加热方法，对铬酸钡分光光度法进行一系列改进实验，并进行了精密度及准确度试验，与国家标准方法的测定结果进行了比较实验。

In this study,the organic sulfur compound is decomposed in a oxygen flask;organic sulfur is turned into sulfate sulfur,and then the measure of sulfate is determined by Barium Chromate Spectrophotometer .

本文用氧弹燃烧法将煤中有机硫氧化成二氧化硫和三氧化硫，再将其转化成硫酸盐硫，建立铬酸钡光度法测定硫酸根的方法，从而间接得到有机硫的含量。

Barium chromate.

铬酸钡。

For about ninety years, Sakai Chemical industrialized our current main products line of zinc compounds, barium compounds, titanium dioxide, plastic additives etc.

日本堺化学工业株式会社成立九十余年来，致力于锌化合物、钡化合物、二氧化钛和塑料助剂等等产品线的工业化。

Advances on the development of new oxidation reagents and methodologies and their applications in both target-and diversity-oriented synthesis have been regularly surveyed and constituted one of the most extensively and actively investigated areas of current organic synthesis.1 In this context,a plethora of oxidants,including those small organic molecule-based reagents (such as Dess-Martin periodinane,Swern oxidation,Moffatt oxida- tion,Corey-Kim oxidation,and 三氧化硫/pyridine)and metal-based systems(such as Jones reagent,Collins reagent,pyridinium chlorochromate,pyridinium dichromate,barium permanganate, manganese dioxide,ruthenium tetroxide,silver carbonate,and Oppenauer oxidation),have been identified to be powerful tools promoting conversion of various alcohols into their corresponding aldehyde or ketone products and thus evolved as a most important class of tools in synthetic chemists'arsenal.

关于新的氧化试剂和方法，在两个目标和多样性为导向的发展及其应用合成的进步定期调查，构成一个最广泛，积极探讨在这方面，过多的地区目前有机合成。1氧化剂，包括有机小分子为基础的试剂（如Dess - Martin氧化剂，斯文氧化反应，氧化法特，科里，金氧化，三氧化硫/吡啶）和金属为基础的系统（如琼斯试剂，柯林斯试剂，吡啶氯铬，吡啶铬，钡锰，二氧化锰，四氧化钌，银碳酸盐和开瓶器氧化），已被证实为推动中相应的醛或酮醇转化的各种产品，功能强大的工具，因而作为一个最重要的阶级演变在阿森纳的工具合成化学家。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。