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Mesitylene is an important material in organic synthesis mainly used toproduce 1,3,5-trimethylaniline, weedicide, antioxygen agent, medicine and manyvarious fine chemical intermediates.

均三甲苯是一种重要的有机合成原料,主要用于生成均三甲苯胺、除草剂、抗氧剂、医药及多种精细化工中间体。

In the presence of cobalt ion, nearly 100% selectivity to ortho-chloroanilinewas achieved over PVP-Ru/Pt colloids at 100% conversion of o-CNB, with an activity twoorders of magnitude higher than that of monometallic PVP-Ru colloid.

当在反应体系中加入钴离子时,邻氯硝基苯被高选择性地氢化为邻氯苯胺(邻氯硝基苯转化率为100%时,选择性~100%),同时,反应的活性比PVP-Ru单金属胶体提高了约两个数量级。

It was found that the samples PVP-PdCl2-CdCl2 and PVP-PdCl2-HgCl2, compared with PVP-PdCl2, exhibited much higher catalytic activity and dechlorination selectivity, and the yields of the coupling by-products were obviously decreased. For example, when p-chloroaniline was used as substrate, the reaction time was shortened to 1/8, and the yield of dechlorination product was about 25 times as much as the original one, and when p-chlorotoluene was used as substrate, the yield of coupling by-product catalyzed by bimetallic catalyst was 1/390 of that catalyzed by monometallic catalyst.

与负载型单金属催化剂PVP-PdCl2相比, PVP-PdCl2-CdCl2和PVP-PdCl2-HgCl2对氯代芳烃脱氯有高得多的催化活性和脱氯选择性,且偶联副产物显著减少;以对氯苯胺为底物时,双金属催化下的反应时间缩短为单金属催化下的1/8,而脱氯产物收率提高25倍;底物为对氯甲苯时,双金属催化下的偶联副产物仅为单金属催化下的1/390。

Brush - off effect and nacreous effect, in the aspects of their origination, basic, principle and finishing operations, with illustration of formulations and finishing procedures.

本文扼要介绍皮革整饰苯胺效应、油变效应、擦色效应和珠光效应四种时尚效应的大致由来、基本原理和加工要旨,并列举工艺配方、操作示例。

The paper describes four types of fashion effects on leather finishing, namely, aniline effects, oil pull-up effect, brush-off effect and nacreous effect, in the aspects of their origination, basic principle and finishing operations, with illustration of formulations and finishing procedures.

本文扼要介绍皮革整饰苯胺效应,油变效应,擦色效应和珠光效应四则时尚效应的大致由来,基本原理和加工要旨,并列举工艺配方,操作示例。

In HCl medium, iodate oxidizes hydroxylammonium chloride to form nitrite, which can produce a red azo dye with the reaction of p nitroaniline and α naphthylamine.

基于碘酸根在稀盐酸介质中氧化盐酸羟胺产生亚硝酸根,而亚硝酸根和对硝基苯胺重氮化后可以与α-萘胺偶联产生红色偶氮染料,提出了分光光度法测定碘的新方法。

According to Griess reaction, diazonium-salts formed from aromatic amines such as sulfonamides etc., react with NaNO_2 in acid medium and may be coupled with α-naphthylamine or diphenylamine to produce red colored compounds.

一按Griess反应芳香族胺类的重氮化鹽,如对氨基苯磺醯胺类药物等,在酸性溶液中皆能与α-萘胺或二苯胺分别偶合成偶氮色素而显紅色,过多之亞硝酸可与氮色素再作用使紅色消失而呈棕黄色。

Aqueous spray colour for smooth garment and furniture leather, nappa, patent and aniline leather

水基光皮上色剂(适用于软羊皮,苯胺革等织物及家具皮革

Beijing 100034,China(The School of Oncology,Beijing Institute for Cancer Research,Beijing Medical University,Beijing 100034,China)(The School of Oncology,Beijing Institute for Cancer Research,Beijing Medical University,Beijing 100034,China)Abstract : Objective In order to study the effects of ATP on U937 cells. Methods Cell culture,flow cytometry,HE staining,Nigrosine staining and electron microscopy were used.

应用ATP(0.23g/L)作用于人白血病细胞U937,(1)用白细胞计数器每日计数细胞和计算抑制率;(2)用流式细胞分析仪文献检测 ATP对U937细胞周期改变和凋亡的影响;(3)苏木精-伊红染色和电子显微镜文献检测凋亡小体的形成过程;(4)用苯胺黑染色文献检测凋亡小体的生命本性。

There are two types of black materials: one kind of them absorbs visible light through electron transition to form black, such as nigrosine, anthraquinone black, and iron oxide black, the other kind such as carbon black reflects and absorbs visible light several times with its superficial porous effect to form black.

现有黑色材料主要有两大类:一类是通过化学物质的外层电子吸收可见光跃迁来形成黑色,如苯胺黑、蒽醌黑、铁黑等;另一类则是利用材料表面的多孔结构,对光进行多次反射和吸收,形成黑色,如炭黑。

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What would he tell Judith and the children?

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I this is at that time, the opinion with peacockish true girl is full of in a heart.

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