聚奥9C传爆药中各组分质量分数的测定

Determination of mass fraction of components in PBXN -5

为了准确测定聚奥9C(PBXN-5)中各组分的质量分数,采用化学法进行分析,得到回流时间、乙酸乙酯的用量、氢氧化钠质量分数对测定结果的影响。结果表明,回流时间5.5～7 h,乙酸乙酯的用量7～8 mL,氢氧化钠质量分数6.5%左右时,能测得最佳结果。对实验结果的精密度进行了分析。

To accurately determine the mass fraction of all components in PBXN- 5, the effects of reflux time, ethyl acetate dosage, and the concentration of sodium hydroxide on the determination are studied through chemical analysis. The results show that the optimum conditions are as follows： reflux time 5.5 -7 h, ethyl acetate dosage 7 -8 mL, and the concentration of sodium hydroxide about 6.5 %. The accuracy of the determination results is analyzed.