![]() In a Breaking Bad MythBusters special, it was stated that silver fulminate had been added as the mercury fulminate alone did not detonate, busting the myth. In the episode of Breaking Bad titled " Crazy Handful of Nothin' ", Walter White uses mercury (II) fulminate to blow up Tuco Salamanca's headquarters. Paladin worries about being blown up while taking a pack sack off. In the TV Western series Have Gun - Will Travel, Season 4 Episode 10 "Crowbait", Russell Collins plays prospector Crowbait, who is carrying fulminated mercury. In the 1955 comedy film Mister Roberts, Ensign Frank Pulver test fires a fulminate of mercury firecracker and blows up the ship's laundry, spreading soap suds across three decks. Ī possible reaction for the decomposition of mercury(II) fulminate yields carbon dioxide gas, nitrogen gas, and a combination of relatively stable mercury salts.Ĥ Hg(CNO) 2 → 2 CO 2 + N 2 + HgO + 3 Hg(OCN)CN Hg(CNO) 2 → 2 CO + N 2 + Hg Hg(CNO) 2 → :Hg(OCN) 2 ( cyanate or / and isocyanate) 2 Hg(CNO) 2 → 2 CO 2 + N 2 + Hg + Hg(CN) 2 ( mercury(II) cyanide) In popular culture The thermal decomposition of mercury(II) fulminate can begin at temperatures as low as 100 ☌, though it proceeds at a much higher rate with increasing temperature. Silver fulminate can be prepared in a similar way, but this salt is even more unstable than mercury fulminate it can explode even under water and is impossible to accumulate in large amounts because it detonates under its own weight. The crystal structure of this compound was determined only in 2007. It was first prepared by Edward Charles Howard in 1800. Mercury(II) fulminate is prepared by dissolving mercury in nitric acid and adding ethanol to the solution. In addition, none of these compounds require mercury for manufacture, supplies of which can be unreliable in wartime. These are non-corrosive, less toxic, and more stable over time they include lead azide, lead styphnate, and tetrazene derivatives. Today, mercury fulminate has been replaced in primers by more efficient chemical substances. The reduced mercury which results forms amalgams with cartridge brass, weakening it, as well. Mercury fulminate has the distinct advantage over potassium chlorate of being non-corrosive, but it is known to weaken with time, by decomposing into its constituent elements. Later, during the late 19th century and most of the 20th century, mercury fulminate became widely used in primers for self-contained rifle and pistol ammunition it was the only practical detonator for firing projectiles until the early 20th century. ![]() Mercury(II) cyanate, though its chemical formula is identical, has a different atomic arrangement the cyanate and fulminate anions are isomers.įirst used as a priming composition in small copper caps beginning in the 1820s, mercury fulminate quickly replaced flints as a means to ignite black powder charges in muzzle-loading firearms. It is highly sensitive to friction, heat and shock and is mainly used as a trigger for other explosives in percussion caps and detonators. Mercury(II) fulminate, or Hg(CNO) 2, is a primary explosive. ![]()
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