The determination result of the trace water in SF 6 by the improved device tallies with that by P 2O 5 electrolysis method.

1、

The method is suited to determine the phosphorus pentoxide contents with the range of 5%~ 38% in phosphate ores.

适用于磷矿石中5%～38%五氧化二磷的测定。

互联网摘选

2、

The modification of synthesizing processes of phosphates with P2O5 and testing method of the content of monoester and diester were introduced briefly.

简要介绍了使用五氧化二磷作为磷酸化试剂合成磷酸酯的工艺过程改进，以及磷酸单双酯含量检测的常用方法。

互联网摘选

3、

After the sample had been acidulated and dissolved by soda.P-Mo-V xanthic acid spectrophotometry was used to determine the content of P_2O_5.

试样经碱熔，酸化后，以磷-钼-钒黄分光光度法测定五氧化二磷；

互联网摘选

4、

Taking chloropropylene oxide, phosphoric anhydride, divinyl triamine as raw materials, the stable and hydrophilic flame retardant was synthesized.

以环氧氯丙烷、五氧化二磷和二乙烯三胺为原料，合成一种性能稳定的亲水阻燃剂。

互联网摘选

5、

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

互联网摘选

6、

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。

互联网摘选

7、

This paper relates to the preparation of phosphorus pentafluoride and the solubility of phosphorus pentafluoride in aether.

本论文对以五氧化二磷和无水氟化氢为原料制备五氟化磷的工艺和五氟化磷在乙醚中的溶解度进行了初步研究。

互联网摘选

8、

The Method of Flowing Injection Analysis for Phosphoric Anhydride in the Productive Process of NPK Compound Fertilizers

流动注射分析法对复合肥中五氧化二磷的分析

互联网摘选

9、

Determination of Phosphorus Pentoxide in Phosphate Ore by Bismuth Salt-molybdenum Blue Parallax Photometric Method

铋盐-钼蓝示差光度法测定磷矿石中五氧化二磷

互联网摘选

10、

The Regularity About the Effect of the Promoter P_2O_6 on the Activity of Vanadium Pentoxide Catalyst

助催化剂五氧化二磷对钒催化剂活性影响的规律性

互联网摘选

11、

The weighing samples affect on content of water-solubility P 2O 5 in compound fertilizer

称样量对测定复混肥中水溶五氧化二磷含量的影响

互联网摘选

12、

Comparison of various analytical methods for determination of P_2O_5

五氧化二磷测定方法的比较

互联网摘选

13、

The synthesis of borate ester containing nitrogen as lubricant additive was studied.

用硼酸与月桂醇和五氧化二磷反应合成了含磷硼酸酯润滑油添加剂。

互联网摘选

14、

Preparation and conductivity of p_2o_5-based non-crystalline copper ionic conductors

五氧化二磷基非晶态铜离子导体的制备及电导研究

互联网摘选

15、

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

互联网摘选

16、

Analytical method of P 2O 5 in the oceanic polymetallic nodules

大洋多金属结核中五氧化二磷分析方法

互联网摘选

17、

Rapid Determination of Phosphorus Pentoxide in Extraction Paste by Acid-Base Titration

酸碱滴定法快速测定萃取料浆中五氧化二磷含量

互联网摘选

18、

IFR was synthesized under optimal reaction conditions with molar ratio of dipentaerythritol ( DPE), phosphoric pentoxide, water, and melamine 1/ 2. 5/ 2. 0/ 3. 45, for 4 h at 120 ℃.

通过实验提出了合成该阻燃剂的最佳反应条件为：双季戊四醇（DPE）、五氧化二磷、水和三聚氰胺反应物料摩尔配比为1／2.5／2.0／3.45、反应时间4h和反应温度120℃。

互联网摘选

19、

In the uniformity comparison of preparation p-n junction by phosphorus oxychloride diffusion and by phosphorus pentoxide sublimation, it is more uniformity that p-n junction preparation by phosphorus pentoxide sublimation.

三氯氧磷扩散与五氧化二磷升华制备p-n结的均匀性比较中，用五氧化二磷升华制备出的p-n结要更加均匀。

互联网摘选

20、

As specified in the standard GB/ T 10209.2 2001, the whole process of determination of available P 2O 5 in diammonium phosphate ( DAP) requires about 3 hours.

按GB/T10209.2-2001规定，磷酸二铵（DAP）中有效五氧化二磷的整个测定过程需时约3h。

互联网摘选