What are the components of black powder?

Black Powder:





15 parts Potassium Nitrate ( KNO3 or saltpeter/saltpetre, or nitre/niter).


2 parts Sulphur/sulphur (S)


3 parts Charcoal (C)





Generally, around the world in the 1800s, Black Powder came to be standardized at 15/2/3 or 15/3/2 of KNO/S/C, both to the same effect.What are the components of black powder?
carbon,sulfur and salt peter,and NO SMOKING.the last ingrediant is very important