성냥 만드는 법

우리나라에서 성냥을 만드는 회사가 한곳도 없다고 한다.
성냥만큼 쉽게 불을 만드는 물건이 있을까?

Source: http://www.popsci.com/node/3935

Commercial matches employ several fancy ingredients to make them shelf-stable and easy to light, but when I decided to whip up a batch myself, I just used Elmer’s glue. After several false starts, I created strike-anywhere matches by mixing a stiff paste of potassium chlorate and glue and rolling it onto the ends of eighth-of-an-inch wooden dowels. Then I baked them in an oven until they hardened. For the igniter, I made a similar paste of glue and red phosphorus and applied a small amount to the match tips. After another round in the oven, they were done. And they actually worked!
A warning: The glue is critical-it separates the two active ingredients. If you combined red phosphorus and potassium chlorate directly, you’d quite likely be maimed or blinded in the explosion that would occur while you mixed them, not after. Experienced pyrotechnicians would never use this mixture-other chemicals work better with fewer disfigured hands. When chemists demonstrate the two chemicals’ volatility, they mix them with a feather, on a flat iron surface (never in a container), wearing a full face shield and thick leather gloves. Dangerous, yes, but only this sort of concoction, tamed with glue, has the inherent instability to make a working match.
Red phosphorus is useful in matches, but white phosphorus is plain evil. Luminous in air, one of the best discoveries of the alchemists, it will kill you as soon as look at you. Next month we’ll use it to make a desktop sun.
Mix potassium chlorate and Elmer’s glue into a stiff paste. This is the “fuel.”
Roll the dowel ends in the paste. Bake them at 150°F for about two hours.
Dip the baked head in a mixture of red phosphorus and glue. This is the igniter.
Another round of baking, and the strike-anywhere matches are ready to burn.

About janpenguin

Email: janpenguin [at] riseup [dot] net Every content on the blog is made by Free and Open Source Software in GNU/Linux.
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