After reading the whole document I did some small experiments:) I soaked some cotton with glycerin and wrapped it into strech film. Then after about one and a half day I unwrapped it and added 250 mlg (1 tablette) of potassium permanganate (crushed) on it. 2-3 seconds later it began burning. I now keep another piece of cotton soaked and wrapped. I will try to see how long I can keep it before becomes useless. <br><br>Then I dipped one esbit tablette into glycerin and then poured PP on it. This also worked. <br><br>I then crushed an esbit tablette and mixed it with glycerin and than poured PP on the mixture. This did not work.<br><br>All done indoors at room temprature.<br><br>