Characterization of engineering materials is a key task for designing specific engineering material to a specific application. There are several ways that world can characterize engineering materials but three ways are the most adopted namely chemical, thermal and electrical characterizations. Here in this book, chemical characterizations of certain engineering materials was carried out using latest technological tools and techniques including FTIR, NMR and optical microscope. Finally, the accurate result was proposed for users using diagrammatic view of each test result.