Mechanism of the synthesization of aminobenzene sulfonate high performancing water-reducing was proved by virtue of mass experiment and infrared spectral analysis.

在合理酸堿催化作用下男女无遮掩激情免费视频，形成初級生成物欧美性爱做，然后和對氨基苯磺酸鈉苯環(huán)的鄰位縮合反應国模自拍日韩在线播放网站，同時氨基上只有一個氫和甲醛反應生成仲胺欧美亚洲日韩，最后形成高聚物。

The test results showed that under low ambient temperature and aphotic storage conditions jet fuel exhibited good color stability.Oxidation reactions,such as photo-catalyzed oxidation and radical oxidation,were the main reaction mechanism of color degradation,and copper played an important role in catalyzing the oxidation reactions.Under static thermal stability testing condi...

試驗結果表明，噴氣燃料在較低溫度午夜福利97、無光儲存條件下具有很好的顏色安定性日韩在线精品福利网页视频观看免费；氧化反應是導致噴氣燃料顏色變深的主要反應機理；靜態(tài)熱安定性試驗條件下欧美日韩啊啊啊爽性爱激情，噴氣燃料的顏色隨氧化時間呈相對穩(wěn)定的加深趨勢女老师高潮喷水；氧化鋁吸附脫除了噴氣燃料中的一些原有氧化抑制劑，使噴氣燃料在較高溫度十八禁欧美在线观看视频、有氧條件下易于發(fā)生氧化反應AAAAAAA一级婬片毛片；銅在噴氣燃料氧化變色反應過程中具有明顯的催化作用。

Meanwhile, Azoxybenzene was also detected by GC-Mass from the extracts of culture fluids with dichloromethane, which conformed the probability of the existence of two metabolites: nitrosobenzene and N-phenylhydroxylamine. Because Azoxybenzene might be yield from the reaction of these two compounds under the catalytic influence of alkali.

另外通過GC-MS測定硝基苯降解液的二氯甲烷提取物99免费视频精品，測到氧化偶氮苯的存在老司免费看黄色三级片，它能在堿的催化作用下由亞硝基苯和N-苯基羥胺反應生成，所以它的存在從反面證實了降解中間產物亞硝基苯和N-苯基羥胺的存在久草手机视频。

By verifying the model, the value of model calculated coincided with the experiment value was obtained. hydrolysis ; benzal chloride ; phase transfer catalyst ; kinetic model

最近通用的方法是采用可溶性的金屬鋅鹽(ZnCl2等)做水解催化劑国产导航在线看欧美，在此反應過程中，水的量對催化作用起著決定性的影響性爱视频网址，必

The experiments also show that adding NaHSO3 into the reaction liquid of hydroxylation reaction can inhibit the catalytic effect of benzoquinone and residual catalyst on the phenolic tars formation caused by oxo-condensation of the diphenols and therefore reduce the tars formation of the diphenols in the reaction solution.

在羥基化反應液中加入亞硫酸氫鈉可以抑制對苯醌和殘留催化劑對苯二酚氧化縮合生成焦油的催化作用狼色精品人妻在线视频免费，從而減少了反應液中苯二酚的生焦反應。

In this thesis, the three series of P, O and P, N bidentate ligands chelated palladium complexes ￡40-46} were designed and synthesized for Suziki cross-coupling reaction.

研究了它們對Suzuki偶聯(lián)反應的催化作用国产一级婬片A网站，優(yōu)化了這些催化劑在聯(lián)苯類化合物合成中的反應條件无码黄片在线看。

Bornyl oxalate was formed smoothly by esterification of β-pinene with anhydrous oxalic acid using solid superacid as catalyst. Borneol was obtained by saponification of bornyl oxalate with NaOH solution.

在固體超強酸催化作用下β-蒎烯和無水草酸平穩(wěn)地發(fā)生酯化反應，生成草酸龍腦酯黄片久久久动漫；加入氫氧化鈉溶液發(fā)生皂化反應得到龍腦。

Moreover, CaO catalyses the steam reforming reaction of hydrocarbons and the water-shift reaction.

CaO能夠促進泥炭的裂解97大学生情侣酒店自拍亚洲精品，并對烴類的重整反應和水煤氣變換反應起到催化作用国产一级A片XXXXx。

Its catalytical principle is mainly electronic effect and geometrical effect.

其催化作用原理則主要體現(xiàn)為電子效應和幾何效應兩方面。

Chlorine dioxide is geenrated in a controlled manner from chlorous acid by catalysis.

通過催化作用由亞氯酸以可控方式產生二氧化氯国产麻豆区精品系列在线。