Trinitrotoluene (TNT) is a man-made, odorless, yellow solid that is used as an explosive. It is also used as an intermediate in the production of dyes and photographic chemicals. Uses:Military: TNT is used in bombs, grenades, and artillery shells. Industrial: TNT is used in underwater blasting and to make dyes and photographic chemicals. Chemical synthesis: TNT is sometimes used as a reagent in chemical synthesis.