Potassium Nitrate
The name rings a bell. Isn't that the oxidizer in gunpowder and a lot of solid rockets? Keep it away from anything that has a lot of calories. Water fine, apple juice, maybe not. Getting sugary goodness into it, accidentally, might well lead to more excitement than you would want while scraping it up.
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An Egg ,D, Mon 14 Sep 2026, 23:54,
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