中间体

S:Dye intermediate—Hacid could be treated effectively by Wet Air Oxidation process and Catalytic Wet Air Oxidation process,all the Hacid was decompounded in 5 minutes and some intermediate products,sueh as NH+ 4,SO 2- 4,HCOOH,CH 3COOH and so on,were formed.

湿式氧化和催化湿式氧化都能有效地处理染料中间体—— H-酸。所有的 H-酸在 5 min内均被去除和形成一些中间产物。在不同反应时间段测定了 p H值及阴、阳离子和小分子有机酸等中间产物。

To study the relationship between the "tail" structure and the characteristics of Gemini surfactants, a new gemini surfactant CH(subscript 2s)-αω-Bis (dehydroabietyihydroxypropyltetramethylethyldiammonium Chloride) here s=2, has been synthesized. Dehydrogenated rosin as hydrophobic "tails" in the structure. The affections of reacttants ratio, reaction temperature and time on the yield of aimed compound have been discussed.

研究了Gemini表面活性剂中疏水&尾巴&结构对性质的影响，以脱氢松香酸和环氧氯丙烷为原料合成了中间体3-脱氢松香酰氧－2-羟丙基氯，再与四甲基乙二胺反应，得到1种以脱氢松香酰基为疏水链&尾巴&的对称Gemini型双季铵盐阳离子表面活性剂：二氯化－N，N'-二（3-脱氢松香酰氧－2-羟丙基）四甲基乙二胺。

To study the relationship between the hydrophobic "tail" structure and thecharacterizations of Gemini surfactants, a new gemini surfactant CsH2s-α,ω-bis(dehydroabietylhydroxypropylteteramethylethylammonium Chloride),here s=2, wassynthesized. Dehydrogenated rosin as hydrophobic "tails" in the structure. The impact factorsin the two steps are discussed.

为研究gemini表面活性剂中疏水&尾巴&结构对性质的影响，本论文以脱氢松香酸和环氧氯丙烷为原料合成了中间体3-脱氢松香酰氧-2-羟丙基氯，再与四甲基乙二胺反应，得到一种以脱氢松香酰基为疏水链&尾巴&的对称gemini型双季铵盐阳离子表面活性剂：二氯化-N，N′-二(3-脱氢松香酰氧-2-羟丙基)四甲基乙二胺。

However, under the experimental conditions used for these tests, carbonyl compounds may be generated by decomposition of unstable intermediates, such as hydroperoxides, thus detracting from accuracy of the results.

然而在这些试验的试验条件下，羰基化合物会由于不稳定中间体的分解产生，如氢过氧化物，因此结果会偏离准确值。

It might be due to unpolar solvent C6D6 disfavoring the charge separation of CTC, leading to no ion radical and no polarization either.

非极性溶剂C6D6不利于CTC的电荷分离，不能形成离子自由基对中间体，因此无极化现象。

In this thesis, the method of the synthesis of the common intermediate compoundof this style has been further studied. It is confirmed a procedure for esterifying the alanine.

本论文对该类化合物的常用中间体(1)的合成方法进行了改进性试验，避免了使用苄酯或叔丁基酯进行丙氨酸酯化，减少了反应的复杂性，简化了后处理方法。

For instance, they may be ethylated by means of an ethyl halide, diethyl sulphate or ethyl p-toluenesulphonate to form dialkyl phenylethylmalonates which are valuable intermediates for the manufacture of certain therapeutically active barbiturates.

通过加入卤代乙烷，二烷基硫酸酯或者乙基p-甲苯磺酸酯，行程二烷基苯基乙基丙二酸酯，它是一种颇有价值的用于制造某些具有治疗活性的巴比妥盐的中间体。

Because of its simpler faceting structure, larger inclusions are sometimes more visible to the unaided eye, so diamonds cut in this shape usually need to be higher clarity (I1 or I2 clarities should probably be avoided).

由于它结构简单面化，有时更夹杂较大的肉眼可见，这个钻石形等，通常需要削减高清晰度(中间体或碘clarities或许可以避免)。

72 When necessary, written procedures should be established for the use of suitable rodenticides, insecticides, fungicides, fumigating agents, and cleaning and sanitizing agents to prevent the contamination of equipment, raw materials, packaging/labeling materials, intermediates, and APIs.

4.72 必要时，还应当对合适的灭鼠药，杀虫剂，杀真菌剂，烟熏剂和清洁消毒剂的使用制定书面程序，以避免对设备，原料，包装/标签，中间体和原料药的污染。

72 When necessary, written procedures should also be established for the use of suitable rodenticides, insecticides, fungicides, fumigating agents, and cleaning and sanitizing agents to prevent the contamination of equipment, raw materials, packaging/labelling materials, intermediates, and APIs.

必要的话，也应建立书面的程序用语使用合理的灭鼠药，杀虫剂，杀菌剂，熏烟剂，和清洁和消毒剂以防止设备，原料，包装/标签材料，中间体，原料药受到污染

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。