Peanuts Are Used in Dynamite

The humble peanut is famously versatile, but one of its most surprising applications connects it directly to the invention of dynamite. The link isn't the nut itself, but the oil it contains. Peanut oil, like many vegetable oils and animal fats, is a rich source of triglycerides. Through a chemical process, this oil can be broken down to yield glycerol, a thick, sweet-tasting alcohol that is also a byproduct of soap making. This unassuming substance is the critical starting point for creating a much more volatile compound.

The true explosive power comes from nitroglycerin, which is synthesized using this very glycerol. In the 19th century, Alfred Nobel’s great innovation was discovering how to stabilize the dangerously unstable nitroglycerin by absorbing it into a porous material, creating the much safer explosive we know as dynamite. While the image of peanuts being used for this purpose is compelling, they are not a required ingredient. The necessary glycerol can be derived from countless other sources, including soybean oil, palm oil, or even animal tallow. The peanut is simply one of many potential contributors to Nobel's groundbreaking invention.