查询词典 peroxide

A new organic compound:N,N'-bis(1,10-phenanthroline-2-formacyl)-4,4'-diamino-diphenylmethane was synthesized via oxidation,esterification,substitution,hydrolysis, amidation of 1,10-phenanthroline as the starting material with chemical reagents (hydrogen peroxide,benzoyl chloride,potassium cyanide,sodium hydroxide solution,4,4'-diamino-diphenylmethane).

以邻菲啰啉为起始原料，与双氧水反应合成邻菲啰啉-N-氧化物，接着与苯甲酰氯、氰化钾、NaOH水溶液一一反应合成中间体邻菲啰啉-2-甲酸，再与4，4′-二氨基苯基甲烷进行酰胺化反应合成目标产物。

Q9PW9 was applied to the oxidation of benzyl alcohol with hydrogen peroxide as an oxidant and high efficient catalytic performance was achieved.

以H2O2水溶液为氧化剂，在氧化苯甲醇制备苯甲醛反应中，发现该催化剂具有良好的催化活性。

The oxidation of benzyl alcohol produces benzoic acid and benzaldehyde selectively with the amounts of hydrogen peroxide varying.

苯甲醇氧化时，随过氧化氢加入量的不同，可以选择性地给出苯甲醛和苯甲酸。

The process includes the following steps: dissolving bromine in halogenated hydrocarbon, dropping the bromine solution into reactant system comprising pentabromo toluene, halogenated hydrocarbon, free radical initiator and hydrogen peroxide at 50-65 deg.c, and heating to 60-78 deg.c for reflux reaction until the reactant system becomes transparent; filtering the resultant to obtain solid product, washing with carbon tetrachloride and water separately and vacuum drying to obtain pentabromo benzyl bromide.

具体步骤为：将五溴甲苯、卤代烃、自由基引发剂和过氧化氢组成的反应体系加入到三颈瓶中，将0.07～0.1mol的溴溶于50ml卤代烃配成溶液，在50-65℃温度下滴加到反应体系中，滴加时间为50-70分钟，然后升温至60-78℃温度下回流反应，至反应体系逐渐变透明，且不再产生气泡时，将所得产物过滤，得到固体产物，分别用CCl 4 和水洗涤，真空干燥，即得到五溴苄基溴；其中，五溴甲苯与溴的摩尔比为1∶0.7-1∶1.0，溴与过氧化氢的摩尔比为1∶1.0-1∶1.4，自由基引发剂加入量为五溴甲苯重量的1-10％，卤代烃的加入量为反应体系体积的40％-100％，所用溶剂可以直接进行下一批反应，不需要更换溶剂或蒸馏提纯。

While the up-flow reactor is the key equipment in medium- and high-consistency clean bleach process, including oxygen delignification、hydrogen peroxide bleach、chlorine dioxide bleach、 ozone bleach, the flow characteristics of the medium consistency pulp in up-flow reactor have significant impact on the quality and the efficiency of the bleach reaction. In this work, a series of equipments are designed and manufactured for a systematic and deep study on the flow characteristics of the medium consistency pulp in up-flow reactor.

而升流式反应器是中高浓清洁漂白工艺（包括氧气脱木素、过氧化氢漂白、二氧化氯漂白、臭氧漂白等工艺）中的大型关键设备，中浓纸浆在升流式漂白反应器中的流动特性与漂白反应的质量、效率都有密切关系，因此本研究自行设计和制造了相关的实验设备，对中浓纸浆在升流式反应器中的流动特性进行了较为系统、深入的研究。

Low levels of the crust, melting point 3180 ℃, boiling point 5627 ℃, the relative density of 2053, the external F electronic structure 5d56s2, reaction time will be lost 1-7 electronic, but also can capture an electron, so oxidation number of 0,± 1, 2 , 3, 4, 5, 6 and 7, rhenium with the halogen in the fluorine, chlorine, bromine reaction halides dissolved in water, can dissolve in nitric acid and ammonia hydrogen peroxide solution, but do not dissolve in hydrochloric acid.

地壳中含量很低，熔点3180℃，沸点5627℃，相对密度2053，外围F 电子结构5d56s2，反应时会丢失1—7个电子，也可捕获一个电子，所以氧化数为0、±1、＋2、＋3、＋4、＋5、＋6和＋7，铼能与卤素中的氟、氯、溴反应生成溶于水的卤化物，能溶于硝酸和含氨过氧化氢等溶液，但不溶于盐酸。

He said older cleansers such as soap and hot water, alcohol, chlorine bleach and hydrogen peroxide are sufficient for most purposes.

他说：沿用至今的清洁剂，诸如肥皂，热水，酒精，氯漂白剂和氢过氧化物，足以作多种用途。

With the development of people's living standard and improvement of qulity of life,and the enhancement of enviromental consciousness,we will put a further step to substitute chlorine of hydrogen peroxide,its application is now expanding to increase the gold extraction rate in mining,and the area of food processing industry, sterile packaging and cosmetics,and also in industrial wastewater treatment, gas scrubbing and disinfection sterilization, its other applications will be expected to increase.

随着人民生活水平和生活质量的提高以及环保意识的加强，将进一步推动过氧化氢对氯的替代，其应用领域正不断扩大，如在矿冶中提高金的提取率，在食品加工业中的无菌包装以及在化妆品中的应用、工业废水的处理、气体洗涤及消毒灭菌等方面应用将有望增加。

It is also safe to use without protective clothing, biodegradable, non-corrosive and breaks through biofilms, which is a big advantage in comparison with other chlorine, ammonium and peroxide based disinfectants.

在使用Citrofresh时无需特别的防护衣物。它可以生物降解，无腐蚀性，可以穿透生物膜，与其他基於氯、胺和过氧化物的消毒剂相比，这些是它们所不可比拟的优点。

Compare to sodium hypochlorite and hydrogen peroxide, chlorine dioxide can remove the impurity in fabric without reduction of its strength and production of severer water pollution, and hence, it is a short processing method for pure cotton fabrics and is worth to be studied and applied.

与次氯酸钠和双氧水相比，二氧化氯不仅能有效降解织物中的杂质，而且不会降低织物强力，也不会造成水体的严重污染，是一种值得研究和推广的短流程纯棉织物前处理方法。

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。