Uploaded September 2009 | Updated September 2026, 2 hours ago

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This is a test burn of potassium nitrate (KNO3) and charcoal (carbon, C), both in powder form. No precise measurements were made, the ratio is roughly 60/40.

This is the slowest burning test performed in this batch.

Potassium nitrate is a strong oxidizer and reactant, and must be treated with respect!