China consider that the properties of gunpowder were discovered during the period 475-221 BC with the rise of interest in alchemy and the urge to perfect the making of both gold and the elixir of life. han dynasty (about the 206年) alchemy increasingly popular, but the exact details of the origin is not clear, this is not the main the alchemists were looking for.
The 1st serious formulations for gunpowder as know it seem to stem from writings about AD808 when sulfur and charcoal have clearly entered the trials though the object was not necessarily to produce explosions so much as to subdue them. It was reported that mixtures of saltpeter, sulfur, raga and honey created fires which burnt hands, faces and houses. The addition of charcoal to hot mixtures of saltpeter and sulfur would certainly have been inflammatory!
The fourth of the search for the elusive also takes active. saltpeter remains the principal constituents, but the experiment may have some water on the way, a mixture of saltpeter or resin and the pig. it is found that, under certain conditions will be a mix of explosives.
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