You have just made your own crimson powder! Make sure you store it in an airtight container, because it is somewhat hydroscopic. Just don't use a glas...
Crimson powder is a pyrotechnic powder that can be used as a substitute for black powder that can be easily made from items you can buy at local stores.
Step 1: Obtain Materials
1.potassium nitrate:I got mine from spectricide stump remover that I found at Home Depot.
2.vitamin c tablets/caplets: can be purchased at any pharmacy
3.iron oxide: can be made or bought from paint suppliers. A cheap place to buy is baileypottery.com
4. An old skillet
5. A scale(accurate to a gram or less)