Here is the recipe to blow something up: a Pyrex bowl; potassium chloride—found at health food stores, as a salt substitute. A hydrometer. Bleach. Take the bleach and pour it into the Pyrex, put it onto a stove burner. Meanwhile, weigh out your potassium chloride and add to the bleach. Check it with the hydrometer and boil until you get a reading of 1.3. Cool to room temperature, and filter out the crystals that form. This is what you will save.
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You need 56 grams of these reserved crystals. Mix with distilled water. Heat to a boil and cool again, saving the crystals, pure potassium chlorate. Grind these to the consistency of face powder, and heat gently to dry. Melt five parts Vaseline with five parts wax. Dissolve in gasoline and pour this liquid onto 90 parts potassium chlorate crystals in a plastic bowl. Knead. Allow the gasoline to evaporate.
Mold into a cube and dip in wax to make it waterproof. This explosive requires a blasting cap of at least a grade A3.
— Jodi Picoult
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