查询词典 sulfur chloride

Hexahydroxy N-containing heterocyclic compound without sulfur and phosphorus was synthesized and its structure was characterized.

欧阳平，陈国需，李华峰，无硫、磷的六元含氮杂环化合物用作润滑油多效添加剂的研究

Wherein X is an oxygen atom or a sulfur atom; C*, C** and C*** are asymmetric carbons; R 1 , R 2 , R 4 , R 5 , R 8 , R 9 and R 10 are each a lower alkyl group optionally having substituent and the like, or R 4 and R 5 and the like in combination optionally form a homocyclic ring optionally having substituent and the like; R 3 is an aryl group optionally having substituent and the like; R 6 and R 7 are each a hydrogen atom and the like; Nu is -CR 16 (COR 17 )(COR 18 ) wherein R 16 , R 17 and R 18 are each a lower alkyl group optionally having substituent and the like, and the like; and EWG is an electron withdrawing group.

通式中，X代表氧或硫；C *、C **和C ***分别表示不对称碳；R 1 、R 2 、R 4 、R 5 、R 8 、R 9 和R 10 分别代表任选取代的低级烷基等，条件是例如R 4 和R 5 可以相互结合形成任选取代的同素环等；R 3 代表任选取代的芳基等；R 6 和R 7 分别代表氢原子等；Nu表示-CR 16 (COR 17 )(COR 18 )(其中R 16 、R 17 和R 18 分别代表任选取代的低级烷基等)等；并且EWG表示吸电子基团。

Antimony samples were dissolved by aqua regia, hydrobromic acid, and hydrochloric acid step wisely, converting sulfur in the samples into sulfate.

方法采用王水，氢溴酸，浓HCl等试剂将锑样溶解，并使锑样中的硫转化为SO42-，低温加热蒸干，使锑完全挥发。

This article introduces the EH-3 medium-temperature sulfur-resistant hydrolyst and ambient-temperature fine desulfurization and their application in Texaco water gas.

介绍了EH-3中温耐硫水解催化剂及常温精脱硫的流程及在德士古水煤气中的运行情况，各项指标工艺要求，值得推广使用。

The process is suitable to indoles compound and sulfur imides compound with different models, has mild reaction condition and simple operation.

该方法可适用于多种不同类型的吲哚类化合物和磺酰亚胺类化合物，反应条件温和，操作简便。

The positive inotropic effect on cultured myocardial cell sheets induced by sulfur compounds may be correlated with its inhibition on enzyme.

含硫化合物引起的正性肌力作用可能与它的酶抑制作用有关。

Sulfur compounds in the diesel were selectively derived into methylsulfonium salts by reacting with iodomethane in the presence of silver tetrafluoroborate, and characterized by positive-ion electrospray ionization fourier transform ion cyclotron resonance.

在四氟硼酸银的催化作用下，以碘甲烷对直馏柴油进行甲基衍生化反应，使其中的有机硫化物转变成极性较强的锍盐，再用电喷雾－傅立叶变换离子回旋共振质谱仪进行检测。

Conclusion］ the improved iodometric method can be used for rapid screening of sulfur dioxide in foods.

结论］ 改良碘量法可以作为食品中二氧化硫残留的快速筛检方法。

Methods］ improved iodometric method and gb method were used as parallel examination of sulfur dioxide in 94 water-solubility foods and 99 non-water-solubility foods.

方法］ 随机采取水溶性食品94件和水不溶性食品99件，分别用改良碘量法和国标法进行检测，比较两种方法检测食品中二氧化硫的符合性。

In this paper, quantum chemistry methods were used to investigate themicrocosmic reaction mechanisms and dynamics of a series of activatenitrogen-, sulfur- and halogen-containing radicals and some smallmolecules in the gas phase theoretically, including isocyanic acid,isothiocyanic acid and ketenyl radical.

本研究论文是采用量子化学理论和计算方法，对异氰酸 HNCO、异硫氰酸 HNCS 及其自由基、乙烯酮自由基 HCCO 与若干气相含氮、硫、卤素的活性小分子自由基反应的微观反应动力学进行理论计算研究。

This was not understood at the time, and therefore went unaddressed, until ascension became so distorted that we chose to stop ascending and wait for a time when all records would be revealed.

这在当时没有被了解，因此进行着无改编，直到提升变得如此扭曲，我们选择去停止提升并等待所有记录能被揭示的那一天。

The attack＇s nuisance value is increased because mobile phone networks also send notifications of new voicemail by sms,so an attacked phone may stop advising of new voice messages too,it warned.

它警告：这种攻击的危害增长是因为移动电话网络也会通过短信发送新语音邮件的通知。所以受到攻击的手机可也以停止新的语音信息的提示。