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The powder consists of the dry spores of clubmoss plants, or various fern relatives principally in the genera Lycopodium and Diphasiastrum.The preferred source species are Lycopodium clavatum (stag's horn clubmoss) and Diphasiastrum digitatum (common groundcedar), because these widespread and often locally abundant species are both prolific in their spore production and easy to collect.
Lab demonstration with burning lycopodium powder. A dust explosion is the rapid combustion of fine particles suspended in the air within an enclosed location. Dust explosions can occur where any dispersed powdered combustible material is present in high-enough concentrations in the atmosphere or other oxidizing gaseous medium, such as pure oxygen.
On 9 March 1911, the village of Pleasant Prairie and neighbouring town of Bristol, 4 miles (6.4 km) away, were levelled by the explosion of five magazines holding 300 tons of dynamite, 105,000 kegs of black blasting powder, and five rail wagons filled with dynamite housed at a 190-acre (77-hectare) DuPont blasting powder plant. A crater 100 ft ...
There were two small, sharp explosions, then a huge explosion so powerful it broke all the windows in the San Leandro School, 2 miles (3.2 km) away. [6] 1916: The Penn Trojan Powder Company, at Iron Bridge, near Allentown, covered several hundred acres and held nine 15 by 30 feet (4.6 by 9.1 m) sheet iron drying building. Every morning and ...
Potassium nitrate/magnesium flash powder should be mixed and used immediately and not stored due to its tendency of self-ignition. If magnesium is not a very fine powder, it can be passivated with linseed oil or potassium dichromate. The passivated magnesium flash powder is stable and generally safe to store. 2 KNO 3 + 5 Mg → K 2 O + N 2 + 5 MgO
Nitrogen triiodide explosion. A contact explosive is a chemical substance that explodes violently when it is exposed to a relatively small amount of energy (e.g. friction, pressure, sound, light). Though different contact explosives have varying amounts of energy sensitivity, they are all much more sensitive relative to other kinds of explosives.
Explosion protection (1 C, 28 P) Pyrotechnic compositions (24 P) Pyrotechnics (7 C, 50 P) R. ... Brown powder; C. C-4 (explosive) Carbonite (explosive) Cheddite ...
A DIME weapon consists of a carbon fiber casing filled with a mixture of explosive and very dense microshrapnel, consisting of very small particles (1–2 mm) or powder of a heavy metal. To date, tungsten alloy (heavy metal tungsten alloy, or HMTA) composed of tungsten and other metals such as cobalt and nickel or iron has been the preferred ...