氢化

Miniaturization of hydroxide of alkaline-earth metal and solubility of salt, flame reaction of alkaline-earth metal ions, separation and identify of alkaline-earth metal ions was investigated.

系统探讨碱土金属氢氧化物及其盐的溶解性、碱土金属元素的焰色反应、碱土金属离子的分离和鉴定等微型化实验，并将其设计成新的微型实验应用于无机化学实验教学，效果良

The alkene chain and H2Se were detected respectively by a series of experiments to support the new mechanism.

通过一系列实验，我们分别检测了烯烃和硒化氢气体，证实了我们所提出的生成机理。

The charge-remote fragmentation of protonated alkylamines and the fragmentation of alkylamine ions can be explaned by using the radical mechanism and hydrogen abstraction of intramolecule, respectively.

自由基机理可以解释质子化脂肪胺分子的远电荷反应。分子内氢抽取可以解释脂肪胺分子离子的碎裂反应。

After comparing the gasoline blending components and hydrocarbon group components of China with the facts of USA and Western Europe, we believe that with the 25Mt/a FCC gasoline base in our country , it is impossible to make hydrocarbon group composition obviously change through the method of dilution, and it is also not necessary to substantially enlarge the yield of alkylate to increas.

利用专门安排的加氢试验结果，进行分析和估算，对比了我国和美国、西欧的汽油调合组分和烃族组成，认为我国由于有25Mt/a的FCC汽油，不可能通过稀释的办法来使烃族组成有根本的改观，也没有必要采用大幅度扩大烷基化油产量来增加烷烃组分。

A process for preparing alkylene glycols including reacting an alkylene oxide with water in the presence of a combination of additives and an anion exchange resin, wherein the combination of additives comprises carbon dioxide and an organic or inorganic base provided in an amount sufficient to maintain a pH of the reaction mixture between about 5.0 and 9.0, with the proviso that, when the base is bicarbonate or carbonate, then the anion exchange resin is a trimethyl benzyl ammonium anion exchange resin.

制备亚烷基二醇的方法，包括让烯化氧与水在添加剂组合和阴离子交换树脂存在下进行反应，其中添加剂组合包括二氧化碳和以足以保持反应混合物的pH值在约5.0和9.0之间的量提供的有机或无机碱，前提条件是当碱是碳酸氢盐或碳酸盐时，阴离子交换树脂是三甲基苄基铵阴离子交换树脂。

The carbonylation of allyl bromide and hydrogenation of 1-octene were carried out under atmospheric pressure and at 40℃.

研究了它们在烯丙基溴的常压羰基化反应和1-辛烯的常压加氢反应中的催化性能。

Polycarbosilane lower the electronic structure and properties of PCS is a kind of high-molecular compound, the main chain by alternating silicon and carbon atoms of the silicon and carbon atoms are connected to hydrogen or organic group, molecular chains of linear or branch structure.

低聚碳硅烷的电子结构及其性质的研究聚碳硅烷是一类高分子化合物，其主链由硅和碳原子交替组成，硅和碳原子上连接有氢或有机基团，分子链为线形或枝化结构。

In reductive amination, how to avoid to turn ketones into alcohols is one of difficulties in industrialized manufacturing.

在还原胺化类催化加氢反应中，如何避免酮被还原成醇，也是工业化生产中面临的难题之一。

A highly explosive mixture of ammonium nitrate and trinitrotoluene.

一种无色或黄色的碘化氢水溶液。

The two companies are integrated enterprises specialized in the production of spice, API, leather, building chemical products, and rubber. We have rich production experience, advanced production equipment, considerable technological force to produce products of top class quality. Our production and business concept is "service and credit first". We have invested 25 million RMB yuan in our companies and have totally 108 employees, 25% of whom are medium-level and senior technicians. We produce series products of Purple Mink brand including the spice: Raspberry ketone, Piperonal, Anisaldehyde, 99% isosafrole, 99% safrole; APIs: Diphenylmethanol, 4-Octyloxyphenol, 2,3-Dihydrofuran; leather chemical products: XD Alkaline chromium sulphate, XD Liming agent; building materials: productivity of 15000 tons of naphthalene series high-efficient high-concentration water reducing agent and 8000 tons of environment-friendly aliphatic water reducing agent; rubber chemical products: F101 Composite resin rubber sulfidizer. The annual sales amount is 80 million RMB.

本公司生产产品涉及香料、医药原料、皮革化工、建材化工、橡胶化工综合性化工企业，具有生产经验丰富、生产设备先进、技术力量雄厚、产品质量一流，服务、信誉第一的生产经营理念，资本投入2500万元，公司员工108人，各类中、高级技术人材占总人数的25%，生产的"紫貂"牌系列产品主要有香料类：覆盆子酮、洋茉莉醛、天然大茴香醛、99%异黄樟素、99%黄樟素，医药原料类：二苯甲醇、4-辛氧基苯酚、2，3-二氢呋喃，皮化类：XD碱式硫酸铬、XD浸灰助剂，建材化工类：萘系列高效、高浓减水剂15000吨、绿色环保型脂肪族减水剂8000吨的母体生产力，橡胶化工类：F101复合树脂橡胶硫化剂系列产品。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。