磺酸

The new synthetic technology of some important anthraquinone intermediates derived from 1-amino- anthraquinone, l-amino-4-hydroxy-anthraquinone, l-amino-4-bromo- anthraquinone-2-sulfonic acid, 1,5- and 1,8 dinitro- anthraquinone, have been studied.

本文研究了几种重要的由1-氨基蒽醌衍生的蒽醌型中间体：1-氨基-4-羟基蒽醌、1-氨基-4-溴蒽醌-2-磺酸和1，5-及1，8-二硝基蒽醌的合成化学，在此基础上开发了上述中间体的合成新技术。

The new synthetic technology of some important anthraquinone intermediates derived from 1-amino- anthraquinone, l-amino-4-hydroxy-anthraquinone, l-amino-4-bromo- anthraquinone-2-sulfonic acid, 1,5- and 1,8 dinitro- anthraquinone, have been studied.

本文研究了几种重要的由1-氨基蒽醌衍生的蒽醌型中间体：1-氨基-4-羟基蒽醌、1-氨基-4-溴蒽醌-2-磺酸和1，5-及1，8-二硝基蒽醌的合成化学，在此基础上开发了上述中间体的合成新技术。现行1-氨基-4-羟基蒽醌的生产技术是从1-氨基蒽醌出发，经二溴化再水解制得，溴的耗量在1.5mol以上。

Finally, 4, 4'-diaminostilbene-2, 2'-disulfonic acid with high quality was synthesized from DNS after purification.

研究结果表明，适宜的重结晶温度约为85℃，优化pH值为9~10，以重结晶后所得精制DNS为原料可制备高品质4，4'-二氨基二苯乙烯－2，2'-二磺酸。

Objective: Spectrophotometric method determination of ozone in ambient air by using indigo disulfonic acid sodium is a well method.

目的：研究了靛蓝二磺酸钠分光光度法测定环境空气中臭氧。

The oxidative degradation and the kinetics of 1,5-naphthalene disulfonic acid in supercritical water was investigated using Mn2O3 /γ-Al2O3 as catalyst.

以Mn2O3/-γAl2O3作催化剂试验探索了1，5-萘二磺酸在超临界水中的氧化降解及动力学。

Keywords 1;5-naphthalene disulfonic acid;catalytic superitical water oxidation;degradation;kinetics

1； 5-萘二磺酸；催化超临界水氧化；降解；动力学

The sulfonated diamines, 4,4'-bis(3-aminophenoxy)biphenyl-3,3'-disulfonic acid was successfully synthesized and characterized.

117膜。合成了4，4'-二-3，3'-联苯双磺酸单体，证实了单体具有预计的分子结构，单体纯度为92.15%。

The sulfonated diamines, 4,4'-bis(3-aminophenoxy)biphenyl-3,3'-disulfonic acid was successfully synthesized and characterized.

117膜。合成了4，4'-二-3，3'-联苯加热器双磺酸单体，证实了单体具有预计的分子结构，单体纯度为92.15%。

The sulfonated diamine, 4,4'-bis(3-aminophenoxy)biphenyl-3,3'-disulfonic acid, was successfully synthesized and characterized by FT-IR and 1H NMR spectra.

合成了4，4'-二联苯-3，3'-二磺酸单体，采用红外光谱和核磁共振等方法对其结构进行了表征。

Nitrate contents of main vegetables and fruits in Yaan city's markets were determined by disulfonic acid colorimetry method. Nitrate pollution levels were evaluated by evaluation criteria of nitrate content classification in China.

方法］采用酚二磺酸比色法对雅安市城区市售主要蔬菜和水果硝酸盐含量进行了测定，并参照我国硝酸盐含量分级评价标准对其硝酸盐污染状况进行了评价。

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。