Insensitive Booster Multi-component Analysis Method

A composition analysis method of an insensitive booster explosive composed of base explosives HMX,TATB and binders 261,PNP is designed and studied. By synthetically analysizing the physical and chemical properties of all components and particle size, the content of F2641 in the JOB-iC is determined by gravimetric analysis after F2641 is seperated from HMX,TATB and PNP through ? alkali reflux. Determination conditions is set as follows the sample is boilingly refluxed for six hour in a constant temperature bath after adding lOOm! 8.0 ? ? 0.1% NaOH. The solvent DMF saturated by TATB is used for extracting HMX,F21 and PNP from the sample and TATB is seperated by crucible filter G4. The mass precent of TATB is determined by extraction fractionation. The mass percent of PNP is measured by multiwavlength linear regression ultraviolet spectrophotometry. The testing conditions are set as follows: (a)multiwavlength constitution: X=267nxn, 275nm, 283nm, 29mm, 299nm, (b)the application scope of the Lambert-Beer law: the concentration of PNP is O.005?0.O25mgIml, the concentration of HMX is 0.060.3Omg/ml, (c)absorption coefficents of PNP and HMX are solved by the slope of linear regression curve of absorbency- concentration of standard solution of PNP and HMIX for measuring wavelengthes, (d)on the basis of the Lanibert-Beer law and absorbancy additivity principle, the slope of linear regression curve of A/E(1) and E1) of PNP and HMX solution is regarded as the concentration of PNP in the solution. Finally, the mass percent of HMIX is determined by decrement. The analytical results of four components in JOB-iC provide foundation for the manufature of the booster explosive.