pentoxide

1. Methods for chemical analysis of aluminium oxide& The molybdenum blue photometric method for the determination of phosphorus pentoxide content
   GB/T6609.17-1986氧化铝化学分析方法钼蓝光度法测定五氧化二磷量
2. A mild and high efficient method to prepare glycidyl nitrate by selective nitration of glycidol with dinitrogen pentoxide as the nitrating agent was developed.
   研究了一种五氧化二氮为硝化剂，选择性硝化缩水甘油合成缩水甘油硝酸酯的温和、高效方法。
3. An acid formed from arsenic pentoxide.
   由五氧化砷形成的酸。
4. Study on the Extraction of Vanadium Pentoxide from Stone Coal Ore
   从石煤矿中提取五氧化二钒的工艺研究
5. Note. ( 1) The dichloromethane is distilled from phosphorus pentoxide and stored over molecular sieves.
   注意事项（1）二氯甲烷加入五氧化二磷蒸馏，加入分子筛储存。
6. Study on adsorption of strontium onto hydrated antimony pentoxide in diluted nitric acid
   水合五氧化二锑吸附稀酸中锶的研究
7. The main products of the company are No.1 Class vanadium pentoxide, ammonium metavanadate, Microsilica, fused Quartz, Quartz Glass Tuber and other raw material of quartz in all sizes.
   主要产品有五氧化二钒一流、偏钒酸铵、硅微粉、融熔石英、石英玻璃管和各种规格石英原料。
8. It discusses the influences of temperature, the types of sodium salt, and the adding amounts of sodium salt to extracting vanadium pentoxide from high-silicon low-vanadium vanadium slag.
   讨论了温度、钠盐种类及钠盐加量对高硅低钒钒渣提取五氧化二钒的影响。
9. Removal of carbon dioxide in multi-channel monolith contactors for gas-liquid concurrent two-phase flow Improvement of Determination Method of Vanadium Pentoxide in Decarburizing Solution of Ammonia
   多通道规整结构接触器气液并流脱碳研究合成氨脱碳液中五氧化二钒测定方法的改进
10. Determination of Phosphorus Pentoxide Content in Carbonate Rocks by Spectrophotometry
    分光光度法测定碳酸盐岩石中五氧化二磷的含量
11. This shows that Vanadium pentoxide may only rarely be applicable as sole oxidizing agent.
    这表明五氧化钒是很少用做单一的氧化剂的。
12. Study on the Process of Producing Vanadium Pentoxide from Bone Coal Vanadium Mine by No-salt-roasting and Acid Leaching;
    采用铵化焙烧及机械力化学法对铝土矿进行尾矿除钛和铁及其表面化学改性。
13. Investigation on Nitration of Monosubstituted Benzene with Nitrogen Pentoxide
    五氧化二氮对一元取代苯的硝化研究
14. A series of new type phosphate amphoteric surfactants were synthesized by using ethylene glycol, epichlorohydrin, alkyl tertiary amine and phosphorus pentoxide as raw materials.
    以乙二醇、环氧氯丙烷、烷基叔胺和五氧化二磷为原料，合成了一种磷酸酯两性表面活性剂。
15. Nitration of Toluene with a Clean Nitrating Agent-Dinitrogen Pentoxide
    绿色硝化剂五氧化二氮对甲苯的硝化研究
16. The mechanism study of carbon reduction process of tantalum pentoxide
    五氧化二钽碳还原过程的机理研究
17. Causticizing mud was used as a roasting additive of sodium chloride for extraction of vanadium pentoxide from stone coal.
    从石煤中提取五氧化二钒时，用苛化泥作焙烧添加剂，以取代氯化钠。
18. A method in which the matrix was matched to calibration curve has been proposed for the direct determination of 13 trace impurities in high-purity tantalum pentoxide by ICP-AES.
    本文提出了基体匹配校准曲线，ICP-AES法直接测定高纯氧化钽中13种杂质元素的分析方法，并考察了光谱干扰以及基体效应的影响，确定了仪器最佳工作条件。
19. Experimental study of recovering refined vanadium pentoxide from waste vanadium catalyst
    从废钒催化剂中回收精制五氧化二钒的试验研究
20. Impurity configuration in phosphogypsum and influence of water-soluble phosphorous pentoxide on cement physical property
    磷石膏中杂质的形态及水溶性磷对水泥物理性能的影响
21. Phosphorylation of high fatty alcohol with phosphorus pentoxide was studied with the aid of 31 P NMR spectrum.
    采用31pNMR波谱对高碳脂肪醇与五氧化二磷的反应进行了研究，定量地表征了产物混合物中的各组分。
22. The structure and the acidic properties of H β zeolite were modified with phosphorus pentoxide added by using chemical vapour deposition method.
    采用化学气相沉积法，研究了五氧化二磷对Hβ分子筛酸性和孔结构的改性。
23. To identify the origin of acid sites, niobium pentoxide and Na-exchanged niobium phosphate were also investigated.
    为了研究酸性的来源，我们对五氧化二铌及Na交换的磷酸铌样品的酸性也做了系统的研究。

noun

1. an oxide containing five atoms of oxygen in the molecule