One nitrate, two yellow and three charcoal, the ratio is 16:2:3. This is an ancient gunpowder preparation method, which is recorded in the method of sulfur contained in the Dan Sutra by Sun Simiao, an alchemist in the Tang Dynasty.
Gunpowder is one of the four great inventions in China. It is a substance that can burn rapidly and regularly under the action of appropriate external energy and generate a large number of high-temperature gas at the same time. In military affairs, it is mainly used as the energy of bullets, shells, propellants, rockets, missiles and other driving devices. It is an important part of ammunition.
An outstanding achievement in the history of human civilization. Gunpowder is one of the important inventions of human civilization because of its lethality and deterrence, which brings mankind the role of war cessation and security defense. （YiXiaoErLiuSanMuTanZenMePei）