THERMO- ANALYTICAL STUDIES OF HMX

SADEK, M. A.; MOEEN, M. H.; RADWAN, M. A.; AMEEN, H. H.

doi:10.21608/asat.1999.25132

THERMO- ANALYTICAL STUDIES OF HMX

Document Type : Original Article

Authors

¹ Professor, Chemical Engineering Branch, Military Technical College [M.T.C.], Cairo, Egypt.

² Associate Professor, Chemical Engineering Branch, Military Technical College [M.T.C.], Cairo, Egypt.

³ Ph.D. student, Chemical Engineering Branch, Military Technical College [M.T.C.], Cairo, Egypt.

10.21608/asat.1999.25132

Abstract

Thermal decomposition of pure cyclotetramethylene tetranitramine (HMX) shows a small endothermic peak at 191.4°C attributed to p to a phase transition, an endothermic peak at 281°C assigned to melting of HMX followed by exothermic decomposition leading to a considerable peak at 284.3°C, and a sharp derivative thermogravimetry (DTG) peak at 282°C with 100% mass loss. The activation energy of decomposition is determined using two different techniques, thermogravimetric TG/DTG and differential scanning calorimetry DSC and three different methods of calculation Ozawa [1-3], Kissinger [2,4] and 1st order rate equation [4].