7d. Smoke Bombs
A relatively cheap and simple smoke mixture is potassium nitrate (saltpetre) and sugar. The mixture can be used in powder form, but much better results are achieved by melting the components together. The mixture should be heated slowly until it just melts - beware of excessive heating as the mixture will ignite. Keep a bucket of water next to you in case the mixture does ignite, and peform the entire operation outdoors if possible. The mixture does not have to be completely liquid, the point at which it has about the viscosity of tar or cold honey is about right. While it is semi-liquid it can be poured into cardboard or clay molds, and a fuse inserted. Once it cools and hardens it will be similar to a stick of hard candy, hence its common name of "caramel candy". Safety aspects: Mixture: The mixture burns very hot. Don't go near it once ignited, and don't assume that whatever the mixture is contained in or standing on will survive. Try not to breathe the smoke as fine particles in the lungs are not good for them.
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