Black powder is a chemical compound, a mixture of three basic components: charcoal, sulfur and Saltpetre ( pottasium nitrate KNO3 ) in the right ratio of course.
Black powder is the basic propellant/explosive used in fireworks, and you might call it the backbone of all fireworks
Alright, if you want to make black powder, you need to get the three components:
Charcoal - well you can easily get charcoal, that is no problem ( in diy shops, etc. )
Sulfur - you can get it at some hobby stores, chemistry supply stores, and also sulfur is used as a fertilizer, so you can get it in garden supply stores and farm supply stores, basically in any shop that sells fertilizers
Saltpetre, pottasium nitrate ( KNO3 ) - used as a fertilizer - available in garden supply stores, also in farm supply stores etc.
So, you got your 3 ingredients and you are ready to make some powder
Black powder needs to be mixed in a right ratio, it is:
By weight ( you'll need to have a scale for this )
75% Potassium nitrate
15% Charcoal
10% Sulfur
