1. Dinitrogen trioxide、Nitrogen trioxde.
   三氧化二氮;
2. Pyridine can react with halogens,nitronium fluoroborate, sulfur trioxide, boranes and chromium trioxide to form some useful organic reagents which are introduced briefly in the paper.
   吡啶可以和卤素、硝基四氟化硼盐、三氧化硫、硼烷及三氧化铬反应，形成一些有用的有机试剂。
3. Reactions of Some Monoterpenes and Nitrogen trioxide Part Ⅱ. Studies on the conditions for preparation of α-pinene nitrosite and its conversion into carvone.
   萜类化合物与三氧化二氮的反应——Ⅱ.α—蒎烯亚氮氧化物的制备条件及其转变为香芹酮的研究
4. Technologies for sulfonation including using sulfur trioxide as sulfonating agent and baking process and the sulfonation equipment such as tubular sulfonator as well are briefed.
   简要介绍了三氧化硫磺化和烘焙磺化工艺及管式磺化反应器,举例说明了气体三氧化硫连续生产十二烷基苯磺酸和烘焙磺化法生产对氨基苯磺酸钠的工艺过程。
5. The preparation methods of dimethylamine hydrochloride/chromium trioxide oxidation reagent and the selective oxidation reaction of cyclohexenol to cyclohexenone with this catalyst are studied.
   研究了负载型盐酸二甲胺三氧化铬氧化剂的制备方法,以环己烯醇选择性氧化成环己烯酮,考察了载体、制备方法、活化条件对氧化剂性能的影响。
6. Sodium gualenate was prepared from guaiazulene by using dioxane sulfur trioxide(D.
   以愈创为原料,用二烷·三氧化硫加合物(D。
7. Products include tungstates and molybdates, molybdenum trioxide, and ferro-molybdenum.
   网站简介 : Producer of tungsten and molybdenum compounds in China.Products include tungstates and molybdates, molybdenum trioxide, and ferro-molybdenum.
   网站简介 : Producer of tungsten and molybdenum compounds in China.
8. Pyridine can react with halogens,nitronium fluoroborate, sulfur trioxide, boranes and chromium trioxide to form some useful organic reagents which are introduced briefly in the paper.
   吡啶可以和卤素、硝基四氟化硼盐、三氧化硫、硼烷及三氧化铬反应，形成一些有用的有机试剂。

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