A powder of great explosive power.
Nitro Powder (ニトロの火薬, Nitoro no Kayaku?, lit. Nitro gunpowder) (or TNT in the original) is an item in the original Final Fantasy. Nerrick the dwarf uses it to blow a hole that allows the player's ship to access the rest of the world's ocean. It is obtained in a chest in Castle Cornelia. In order to retrieve it, the player must first obtain the key from the Elf Prince in Elfheim, then head to the castle in Cornelia, where the player will find the Nitro Powder in a locked room on the base floor.
Nitroglycerin is a heavy, colorless, oily, explosive liquid.
Trinitrotoluene (TNT) is a yellow chemical compound solid sometimes used as a reagent in chemical synthesis, but it is best known as an explosive material with convenient handling properties. The explosive yield of TNT is considered the standard measure of strength of bombs and other explosives.