Study of the CL-20 flame structure using probing molecular beam mass spectrometry

The CL-20 flame structure at pressures of 0.1 and 0.5 MPa was studied using probing molecular beam mass spectrometry. At a pressure of 0.1 MPa, the gaseous products near the surface of the foamy carbonaceous carcass were found to contain eight species: NO, NO$_2$, CO, CO$_2$, N$_2$, H$_2$O, HCN, and HNCO. At a pressure of 0.5 MPa, NO$_2$ was not found and the concentration profiles of the remaining seven species were measured versus the distance to the carbonaceous carcass. In the CL-20 flame at a pressure of 0.5 MPa, consumption of N$_2$ and CO$_2$ with the formation of NO and HNCO occurred in a zone of width $\approx$0.8 mm from the surface of the carbonaceous carcass. At a pressure of 0.5 MPa, the composition of the gaseous combustion products of CL-20 at a distance of 3–4 mm differed from the composition at thermodynamic equilibrium.