Back in 1973, at the age of 28, I started college under using the GI Bill. I had done a lot of different things by that time. My first courses were General, then Organic Chem.
Having played with it a lot, I looked into making black powder - the processes were so dangerous that I decided instead to make gun cotton, Cellulose Nitrate. Much safe process, and the product was much more effective than black powder.
The two ounces that I made worked wonders in blowing the doors off of old refrigerators - 1/4 oz at a time. Frightening stuff to think of today, for sure.
I do not envy the workers of the DuPont factory, or any other manufacturer of black powder - and am grateful for their efforts. No complaints from me about the cost!