Miedziankit is a

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles Poles,, ; singular masculine: ''Polak'', singular feminine: ''Polka'' or Polish people, are a West Slavic nation and ethnic group, w ...

explosive. It consists of 90% potassium chlorate and 10%

kerosene Kerosene, paraffin, or lamp oil is a combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in aviation as well as households. Its name derives from el, κηρός (''keros'') meaning "wax", and was regi ...

. Miedziankit was developed by Polish chemist and patented by him in 1909. It was widely used in Germany, Poland, and Russia in the years around World War I, when nitrate-based explosives were needed for the war effort. It is a

Sprengel explosive Sprengel explosives are a generic class of materials invented by Hermann Sprengel in the 1870s. They consist of stoichiometric mixtures of strong oxidisers and reactive fuels, mixed just prior to use in order to enhance safety. Either the oxidiser ...

and can be prepared just before use by soaking chlorate cartridges in kerosene. Alternatively, it can be mixed at the factory, using kerosene with a high enough flash point (above 30°C) to make the explosive safe for transport. When pressed in an iron tube to a density of 1.7 g/cm³, Miedziankit has a

detonation velocity Explosive velocity, also known as detonation velocity or velocity of detonation (VoD), is the velocity at which the shock wave front travels through a detonated explosive. Explosive velocities are always faster than the local speed of sound in t ...

of 3000 m/s.

References

Binary explosives {{Explosive-stub