Research Progress of Crystal Structure and Properties of RDX

The performance of explosive is not only affected by the molecular structure,but also closely related to the crystal structure.The research development in crystal structure and properties for RDX was reviewed.RDX is featured as orthorhombic system with a=13.182,b=11.574,c=10.709,Z=8,α=β=γ= 90.0°,and space group of Pbca.When the average particle size is in the range of 16.7 μm to 337.9 μm,it shows greater effect of RDX particle size to the impact sensitivity,the large the RDX particle size,the higher the impact sensitivity.It shows that the crystal structure of RDX has an important influence on its properties.The crystal structure should be fully taken into account in the application process.