Which chemical element/compound is not included in gunpowder?

when in our early teens we made gun powder substituting sugar for charcoal; had a piece of bamboo to use as a tiny cannon to shoot small stones

Thanks, Mr. Spock!

Had to try and remember if it was Potassium nitrate or chloride but somewhere in my brain the right answer came out!

Aha. Very interesting And I'm first to comment