Making Legal(?) DIY Fireworks in time for New Years | Senko Hanabi Masterclass
From NightHawkInLight. In this video I reveal the secrets for making Japanese senko hanabi sparklers with a bicarbonate based powder composition. Because the powder contains bicarbonate instead of an oxidizer, it can rightly be categorized as non-flammable. In fact the key ingredient in these sparklers, potassium bicarbonate, is also the active ingredient in “purple k”…