Scrutiny different methods for preparation and analysis of CL-20 polymorphs

Polymorphism is the ability of a solid substance to crystallize into more than one different crystal structure. Different polymorphs have different arrangements of atoms within the unit cell, and this can have a profound effect on the properties of the final crystallized compound. One of the fundamental subject in the energetic materials is reproducibility operation and efficiency compound or designed system. This matter could be in danger with transform Polymorphic. Thus polymorphisms between the energetic materials is located too much attention. Nitro groups on the bridging nitrogen’s can be different spatial orientation in the molecule CL-20. Depending on how its placement in the CL-20 crystals’ different crystal forms provide. CL-20 can exist as four different polymorphic phases at ambient pressure and temperature; α, β, γ and ε. The crystalline forms have different density and sensitivity that ε form because having more density and less sensitivity is more appropriate for military expenditure. In this paper various methods of preparation of CL-20 polymorphs and crystalline forms analyzes by using spectroscopic techniques, Raman, FTIR, UV, X.ray and XRD will be examined.