10 St. 45 Min, 19 Aug 1800 Jahr - Precussion cap guns
Beschreibung:
Rev. John Forsyth in the early 1800s .
The percussion cap was made possible by the discovery of a chemical compound called mercuric fulminate or fulminate of mercury. Its chemical formula is Hg(ONC)2 — it is made from mercury, nitric acid and alcohol.
Mercuric fulminate is extremely explosive, and it is shock sensitive. A sharp blow, or even too much finger pressure, can cause it to detonate. By putting a small amount of mercuric fulminate in a pre-made cap (a tiny cup about the size of a pencil eraser) and affixing the cap to a nipple and tube leading into the barrel, the cap can ignite the gunpowder in the barrel.
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