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The trip wire activated a stun grenade—a small device filled with a mixture of magnesium powder and mercury fulminate.

They're lined with mercury fulminate, and you want to take your shoes off when you come near that.

It is a more powerful explosive than mercury fulminate, and has been used instead, in the manufacture of detonators.

Chemistry advances, like the isolation of mercury fulminate in 1800, led to the invention of the percussion cap and other primers.

Pure mercury fulminate may be kept an indefinite length of time.