B1 Nitroglycerin
…I've got one charge of Nitroglycerin in my office, that will serve as a catalyst.
― Kyburz[src]

The Nitroglycerin is a plot item in BioShock, and is the last component required to assemble the Electromagnetic Pulse Bomb. It's found in Kyburz' office of Hephaestus, which has Trap Bolts rigged all over the place. After disabling the bolts (Telekinesis or Hypnotize Big Daddy is the best way to do so), Jack presses the button on the desk that opens the hidden compartment containing the charge of Nitroglycerin.

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