3f3c7f5b_ersity___Pyrotechnic_Compounds__Fireworks_Usage
[Symbol] K [Name] Potassium [Fireworks Usage] 
Potassium compounds help to oxidize firework mixtures. Potassium nitrate, potassium chlorate, and potassium perchlorate are all important oxidizers. The potassium content can impart a violet-pink color to the sparks.
Phantom Fireworks : Fireworks University : Pyrotechnic Compounds
Fireworks Usage