电位滴定法测定火药中硫酸钾含量  

The Method of Determination of K_2SO_4 Content in Propellant by Potentiometric Trituration

作　　者：周激[1] 张翠梅[1] 

机构地区：[1]华北工学院,山西太原030008

出　　处：《火炸药学报》2000年第4期63-64,共2页Chinese Journal of Explosives & Propellants

摘　　要：用电位滴定法测定了单基火药中的 K2 SO4 含量 ,结果表明 ,用丙酮溶解单基药试样 ,以 75 %的丙酮为滴定介质 ,测定结果的误差小于 2 % ,标准偏差为 0 .0 2 ;用浓硝酸破坏试样 ,以 70 %的乙醇为滴定介质 ,误差小于 0 .2 % ,回收率达 99.8%以上 ,标准偏差为0 .0 0After testing the K2SO4 content in propellant by means of poteniometric trituration,it can be concluded that if the sample of propellant is used to dissolve acetone on the condition that 75% acetone is its trituration medium,the error of the testing results is less than 2%,and its standard error is 0.02.Furthermore, if concentrated nitric acid is used to destroy the sample,on the condition that 70% alcohol is its trituration medium,the error is less than 0.2%,and its recycling rate will be over 99.8%,thus the standard error is 0.001.

关 键 词：单基火药 电位滴定 硫酸钾 滴定介质 

分 类 号：TQ56-55[化学工程—炸药化工]