They were sticks with an ignition head made of potassium chlorate , sulfur , binding agent and other components. Moistened with concentrated sulfuric acid , the head ignited and the wood began to burn. The acid was dripped onto a piece of asbestos that was carried in a glass vial .
They found widespread use, but soon after the invention of the matches fell out of use, mainly because of the danger of the splashing acid droplets and flying sparks that often emanated from them.
- Alexander P. Hardt: Pyrotechnics , Pyrotechnica Publications, Post Falls Idaho USA 2001, ISBN 0-929388-06-2 , pp. 74 ff.