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For instance, power grades of black powder, unsuitable for use in firearms but adequate for blasting rock in quarrying operations, are called blasting powder rather than gunpowder with standard proportions of 70% nitrate, 14% charcoal, and 16% sulfur; blasting powder may be made with the cheaper sodium nitrate substituted for potassium nitrate ...
Drilling and blasting is the controlled use of explosives and other methods, such as gas pressure blasting pyrotechnics, to break rock for excavation. It is practiced most often in mining , quarrying and civil engineering such as dam , tunnel or road construction.
Binary explosives are cap-sensitive (detonatable with a standard #8 blasting cap) two-part explosives mixtures, shipped separately and combined at the use site. Many of these mixtures are based on Ammonium nitrate as an oxidizer plus a volatile fuel, but unlike ANFO (ammonium nitrate fuel oil explosive) these binaries can be detonated by ...
Sandblasting can be used to refurbish buildings or create works of art (carved or frosted glass). Modern masks and resists facilitate this process, producing accurate results. Sandblasting techniques are used for cleaning boat hulls, as well as brick, stone, and concrete work. Sandblasting is used for cleaning industrial as well as commercial ...
Mercury(II) fulminate, or Hg(CNO) 2, is a primary explosive.It is highly sensitive to friction, heat and shock and is mainly used as a trigger for other explosives in percussion caps and detonators.
Production of blasting caps, Hercules Powder Company, 1955 Inserting plug and bridge wire into electric blasting caps, 1955 A non-electric detonator is a shock tube detonator designed to initiate explosions, generally for the purpose of demolition of buildings and for use in the blasting of rock in mines and quarries.
Blasting caps, ingitors 1.1C Rocket motors, smokeless powder. 1.1D Detonating cord, explosive boosters, blackpowder, most secondary explosives. 1.1E 1.1F 1.1G Flash powder, Bulk Salutes, very large fireworks 1.1J Liquid fuelled cruise missiles and torpedoes, incendiary bombs 1.1L 1.2 Projection, no mass explosion: 1.2B Detonating fuzes 1.2C
The fuel/catalyst mixture is 90% 600-mesh dark flake aluminium powder, combined with the catalyst that is a mixture of 5% 325-mesh titanium sponge and 5% 200-mesh zirconium hydride [1] (with another patent document [10] listing 5% zirconium hydroxide). The oxidizer is a mixture of 85% 200-mesh ammonium nitrate and 15% ammonium perchlorate. [1]