Potassium carbonate
From PyroGuide
Formula: K2CO3
Synonyms:Lye,Pottash,Solution of alkaline.
Description: Potassium carbonate is a very unusual fuel finds most use in Yellow powder. It's very corrosive and alkaline when wet. Use gloves and safety glases when working with Potassium carbonate.
Hazards: Potassium carbonate is corrosive and toxic.
Hazard Symbols: C,Xn