US EPA

8338501 

Journal Article 

Method of mathematical calculation for the effect of oxygen balance on the explosion property of powdery ammonium nitrate explosives 

Lu, M; Lu, C 

2004 

25 

2 

225-228 

Chinese 

Mathematical model for the formulation design of powdery ammonium nitrate (AN) explosives was studied. The theoretical explosion heat, specific volume and toxic gas volume of AN explosive without TNT, AN explosive containing TNT and fuel oil, as well as AN explosive containing aluminum powder and TNT at different oxygen balance values are calculated respectively. The following results are confirmed, viz. that when the oxygen balance value of powdery AN explosive is decreased, the theoretical explosion heat is reduced, the specific volume increases, and toxic gas volume also increases. A method for formulation design was proposed, in which maximum theoretical explosion heat was obtained at an assumed oxygen balance condition. A way for the predictable calculation of the theoretical explosion heat, specific volume and volume of toxic gas AN explosive was suggested. These are useful for the determination of AN explosives formulation. 

AN explosive; Applied Chemistry; Explosion heat; Formulation design; Mathematical calculation; Oxygen balance; Specific volume; Toxic gas volume