Objection your honor, my clients explosive device was meticulously and professionally crafted. To call it 'improvised' is an insult.
chernobylll and electroBOOM: Its sodium chloride
electroBOOM_: you want me to mix cooking salt with Gasoline?
How to make explosives: Electrolyze saltwater at 3v and 2amps with platinum electrodes for 2 weeks to make sodium chlorate. Mix the sodium chlorate with Gasoline unitl oxygen is balanced, Encase in a metal pipe, use a fuse to ignite