The optimal synthesis conditions are that when the mass ratio of amylum and acrylamide is 3:1; NaOH is 75% of acrylamide; the concentration of ammonium ceric nitrate is 5 mmol/L; the N, N′-methylenebisacrylamide and acrylamide is 0.2%; and the reaction temperature controlled in (60±2)℃, the water absorptivity of produced super absorbent can reach to 750 g/g for tap water.

最佳合成條件是：在淀粉與丙烯酰胺的質量比為3：1国产在线无码全黄、氫氧化鈉為丙烯酰胺質量的75%黄色视频网址在线播放、硝酸鈰銨的濃度為5mmol/L性爱视频永久地址、交聯(lián)劑N黄免费视频色，N'-亞甲基雙丙烯酰胺與丙烯酰胺的質量比為0.2%91精品久久久久久中文字幕无码、反應溫度控制在(60±2)℃的條件下，制得的保水擴蓄劑吸水率可以達到750 g水／g。

Rate constants of oxidation reaction of anethole to anisaldehyde by Ceric Sulfate at different temperature(15-35℃)were measured.

制備茴香醛是用對甲氧基甲苯作為原料氧化合成茴香醛538再线视频，[2欧美日韩激情A片视频一站，3]但近年石油化工原料價格猛漲，因而以我國廣西盛產(chǎn)的茴香油為原料制備茴香醛的方法得以重視[4-9]精品中文字幕在线。

The processing abilities, structures and corrosion properties of the ceric aluminum brass and the arsenical aluminum brass were studied by means of metallographic analysis, microhardness measurement, mass loss measurement, electrochemical testing and scanning electron microscopy.

采用金相組織分析能看av得网站、顯微硬度分析、質量損失分析国产精品黄页免费观看、電化學測試和掃描電鏡等手段研究鈰鋁黃銅和砷鋁黃銅的加工性能国产a片区真实,乱伦、組織結構和耐蝕性能。

Potassium dichromate was replaced by ceric sulfate as oxidant to determine the COD in this study.

采用硫酸高鈰作為氧化劑來測定難降解垃圾滲濾液的COD69黄片一级，測定結果與重鉻酸鉀法進行比較免费污色网站。

The effects of solvent on the bromization reaction and oxidant on the formolation reaction of the target product were studied. The results show that the optimum solvent for the bromization reaction and the optimum oxidant for the formolation reaction of the target product were carbon tetrachloride and ceric ammonium nitrate, and their yields were 86.7% and 89.3% respectively.

同時就溴化反應中的溶劑以及甲酰化反應中的氧化劑對兩類反應的影響分別進行了研究三级黄色欧洲激情，結果表明溴化反應的最佳溶劑為四氯化碳亚洲一级二级，反應產(chǎn)率達到86.7%，甲跹侵薰肺蘼胪化反應的最佳氧化劑為硝酸鈰銨国产一区在线观看免费你懂的，產(chǎn)率達到89.3%。

ceric：鈰的

ceria 酸化市 | ceric 鈰的 | ceriferous 產(chǎn)蠟的

ceric：高鈰的

ceriaceramics 氟化鈰陶瓷 | ceric 高鈰的 | cerichydroxide 氫氧化高鈰

ceric：高鈰的,四價鈰的

純地蠟,白地蠟,精制地蠟 ceresin | 高鈰的,四價鈰的 ceric | 鈰,Ce cerium

ceric fluoride：四氟化鈰

like all possessed 拼命地 | ceric fluoride 四氟化鈰 | frit seal 熔接密封

ceric oxide：二氧化鈰

ceriander seed 芫荽子 | ceric oxide 二氧化鈰 | ceric sulfate 硫酸鈰