According to the patents registered in 1864 and 1865, the original composition of this explosive is as follows:
Liquid nitroglycerin is packed in a metal tube or other closed cylinder. In this closed container, put a small wooden tube filled with black powder, and then insert a fuse in the lid of the small wooden tube. Light the fuse, let the black powder in the small wooden tube explode, and finally detonate the whole explosive. Nobel improved this explosive many times, and in 1865, it was detonated with mercury fulminate instead of black powder, which is the detonator that has been used to this day.