Mercury(II) fulminate
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Fulminated mercury
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Silver fulminate |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Mercury(II) fulminate, or simply mercury fulminate is a primary explosive, sensitive to friction and shock, widely used in the past as trigger for other explosives in percussion and blasting caps. Today, mercury fulminate has been replaced by other less toxic, more stable and less corrosive primers, such as lead styphnate or tetrazene derivatives. It has the chemical formula Hg(CNO)2.
Although some sources identify mercury fulminate as mercury cyanate, this is incorrect, as fulminates have a direct metal-carbon bond, while cyanates have an ionic bond between metal and the oxygen from the cyanate group.
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Properties
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Preparation
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