查询词典 sulphur chloride

Using phenol and benzyl chloride as raw materials and N,N-dimethyl formamide as solvent, benzyl phenyl ether was synthesized under microwave radiation.

采用微波辐射技术，以苯酚、氢氧化钾和氯化苄为原料，N，N-二甲基甲酰胺为溶剂合成了苄苯醚。

During esterification of benzyl chloride and sodium formate, benzyl formate is esterilysis which is a reversible reaction, and the mole ratio of benzyl formate to benzyl alcohol is 3:7 because of the chemical equilibrium.

在氯化苄与甲酸钠的酯化反应同时存在甲酸苄酯的水解反应，并且甲酸苄酯的水解反应是可逆反应，受化学平衡的限制，在实验条件下的甲酸苄酯与苯甲醇平衡的摩尔比大致为3：7。

Benzyl butyrate was prepared by phase transfer catalysis of butyric acid with benzyl chloride in the presence of ben zalkonium bromide as a catalyst.

以丁酸和氯化苄为原料，以新洁而灭为相转移催化剂合成了丁酸苄酯。

There are three different nucleophilic reagent respectively reaction with m-dinitrobenzene ramification at distint alkaline term:With the nitrobenzene 、 m-nirtobenzenesulfone sodium salt 、 2.4-dinitro chlorobenzene 、 m-dinitrobenzene for bottom thing, benzyl cyanide、 benzyl chloride、 benzyl chloropyridine、is a nucleophilic reagent reaction for under the different term proceeds a series reaction. At the same time ,discuss about the impact factor to nucleophilicity such as the number of attract electron group、 ability of attract electron and the nucleophilic substitution reaction part.

设计了三类不同的亲核试剂分别与活化芳环在不同的碱性条件下发生反应：以苄基氰、苄基氯化吡啶为亲核试剂，以硝基苯、间二硝基苯、间硝基苯磺酸钠、2，4-二硝基苄基氯为底物进行亲核取代反应；并且对亲核试剂的体积效应、溶剂效应对亲核性影响，底物上吸电子基团的数目、吸电子能力对亲电性的影响，以及亲核取代反应的发生部位受哪些因素影响进行探讨。

Beryllium oxide is used in specialized ceramics for nuclear devices, and beryllium chloride is a catalyst for organic reactions.

氧化铍用于核设施的特殊陶瓷中，氯化铍是有机化学反应的催化剂。

Lameller mesostructured bismuth oxychloride was fabricated by hydrothermal method in a strong acidic (PH＜1) media, with hexadecylamine as the template and bismuth chloride as precursor.

以中性表面活性剂十六胺为模板，无水三氯化铋为前体，在强酸性(PH＜1)介质中合成了层状相介孔氯氧化铋。

Brief description is given to the test on the technology for comprehensively recovering gold and silver from tellurium-bearing slag: Tellurium-bearing slag is ground and leached with water to produce crud tellurium dioxide which is then purified through ion precipitation and complexing purification process; leaching reside is leached with chloride to produce copper and bismuth, bismuth oxychloride is recovered through neutralization and hydrolysis and sponge copper is recovered through cementation; gold and silver in the remaining residue can be recycled to the gold and silver smelting system for recovery.

文摘：简述了碲渣综合回收金银等的工艺试验：碲渣经磨矿水浸碲产出粗二氧化碲，用离子沉淀和络合净化法提纯；浸碲渣用氯盐浸出铜铋，中和水解回收氯氧铋，置换回收海绵铜；残留渣中的金银可返回金银冶炼系统回收。

A major component of corrosion solution is a ferric chloride, which is a compound of iron oxide and, as a yellow crystalline solid or Black-Brown, capacity.

腐蚀液的主要成分是三氯化铁，它是氧化铁与盐酸的化合物，为黄色固体或黑褐色结晶体，极容易潮解。

This EcoSystem aquarium exhibits such tight nutrient cycling that Markus intentionally adds ammonium chloride (NH4Cl) to his tank on a daily basis to keep his corals from bleaching even though his tank is filled with invertebrates and highly active anthias fish which he feeds on a constant basis. The prolific growth of this truly mixed reef aquarium is so rampant that Markus harvests between 50-100 frags each month just to keep the growth in check.

这个EcoSystem的系统，由于超低的营养盐，需要每天添加阿摩尼阿(NH4CL)，否则由于营养盐过低，珊瑚会白化，虽然已经添加了大量的无脊椎生物还有一大堆的宝石石，并且维持均衡的喂食，这个缸的SPS生长可以用疯狂来形容，每个月需要剪出50~100个断支，这也是观察珊瑚是否健康的一种途径。

Methods Methylthioninium chloride 1.0-2.0 ml was injected each in 488 patients with thyroid node before operative 24 hours,the number and distribution of the blue-stained nodes in the cervix were explored during operation,and the blue-stained nodes and resected thyroid nodes were examined by rapid pathology.

对488例甲状腺疾病患者采用1%美蓝1.0～2.0ml术前24h注射于甲状腺结节或周围腺体，并在术中探查其颈部淋巴结蓝染数目及分布，同时对蓝染的淋巴结及切除的甲状腺结节行术中快速病理检查。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。