Acid

S13, E35: It feeds on metal, dissolves skin and bone, and packs a punch in nearly every military explosive. It's perhaps the most dangerous substance known to man. Yet it's the most widely produced chemical in the world. Modern Marvels "Acid" gets a rare peak at how the military harnesses acid to make the explosive 'Comp B-4'. We'll turn up the heat at a sulfuric acid plant, and see how acid can take the stain out of stainless steel. We'll learn why acid is an expert etcher, and how it can be mixed to dissolve precious metal. We'll see how acid helps put the gel in gelatin, and why acid's sour taste is sweet at the Heinz vinegar plant. Then, it's time to go extreme as we learn how an acid loving bacteria may hold the key to a biological industrial revolution. All this and a mad scientist who will demonstrate how acid can hollow out a penny and turn a hot dog to sludge.