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  2. Saltpetre works - Wikipedia

    en.wikipedia.org/wiki/Saltpetre_works

    A saltpetre works or nitrary [1] is a place of production of potassium nitrate or saltpetre used primarily for the manufacture of gunpowder. The saltpeter occurs naturally in certain places like the "Caves of Salnitre" ( Collbató ) known since the Neolithic.

  3. Gunpowder - Wikipedia

    en.wikipedia.org/wiki/Gunpowder

    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 ...

  4. Potassium nitrate - Wikipedia

    en.wikipedia.org/wiki/Potassium_nitrate

    The use of potassium nitrate has been mostly discontinued because it gives slow and inconsistent results compared with sodium nitrite preparations such as "Prague powder" or pink "curing salt". Even so, potassium nitrate is still used in some food applications, such as salami, dry-cured ham, charcuterie , and (in some countries) in the brine ...

  5. Rocket candy - Wikipedia

    en.wikipedia.org/wiki/Rocket_candy

    First, the potassium nitrate is ground or milled to a fine powder, and then thoroughly mixed with powdered sugar which is then heated. This method does not actually melt the potassium nitrate, as the melting temperature of KNO 3 is 323 °C (613 °F), but it melts the sugar and coats the grains of KNO 3 with the melted sugar.

  6. Smokeless powder - Wikipedia

    en.wikipedia.org/wiki/Smokeless_powder

    Because of their similar use, both the original black powder formulation and the smokeless propellant which replaced it are commonly described as gunpowder. The combustion products of smokeless powder are mainly gaseous, compared to around 55% solid products (mostly potassium carbonate , potassium sulfate , and potassium sulfide ) for black ...

  7. Pyrotechnic composition - Wikipedia

    en.wikipedia.org/wiki/Pyrotechnic_composition

    Potassium nitrate and potassium sulfate are commonly used. Opacifiers. Some solid rocket propellants have problems with radiative heat transfer through the material, which may lead to explosion. Carbon black and graphite are often used to inhibit this effect. Colorants, sometimes in combination with sources of chlorine.

  8. Meal powder - Wikipedia

    en.wikipedia.org/wiki/Meal_powder

    The powder has occasionally been used as a synonym for Serpentine powder, which it physically resembles. [2] 'Mill meal' powder is a mixture of potassium nitrate, charcoal and sulfur in the correct proportions (75% potassium nitrate:15% charcoal:10% sulfur) which has been ball-milled to mix it intimately. It is used in the same way as ...

  9. California Powder Works - Wikipedia

    en.wikipedia.org/wiki/California_Powder_Works

    The wharf was used to receive shipments of potassium nitrate and sulfur from Sicily. Horse-drawn wagons moved raw materials and gunpowder between the wharf and the powder works until the South Pacific Coast Railroad was built. [1] The powder works wharf was unused after 1882 when railroad freight rates encouraged use of wharves in San Francisco ...

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