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Saltpeter Mine Ruins in Mammoth Cave. The process involved burial of excrements (human or animal) in the fields prepared for that purpose beside the nitraries, watering them and waiting until the leaching process did its job; after a certain time, operators gathered the saltpeter that "came out" to the ground surface by efflorescence.
The Act establishing the Nitre and Mining Bureau by the Confederate Congress stated: "That said bureau shall consist of one lieutenant colonel as superintendent, three majors as assistant superintendents, six captains and ten lieutenants, in which shall be included the officers of the present nitre corps, who shall have the same pay and allowances prescribed for officers of cavalry of the same ...
In 1913 Santa Laura halted its production until the Shanks extraction process was introduced, which enhanced productivity. However the economic model collapsed during the Great Depression of 1929 because of the development of the synthesis of ammonia by the Germans Fritz Haber and Carl Bosch , which led to the industrial production of fertilizers.
Saltpetre worker: A saltpetre worker produced potassium nitrate, an essential ingredient in gunpowder, by extraction from soil rich in dung and urine. [39]: 102–106 [188]: 18–25 [189] The arduous and expensive process of the saltpeter worker [190] was rendered uneconomic by cheaper imports from India. [188]: 133–135 Econom: 13: 18: Samurai
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This alkali metal nitrate salt is also known as Chile saltpeter (large deposits of which were historically mined in Chile) [4] [5] to distinguish it from ordinary saltpeter, potassium nitrate. The mineral form is also known as nitratine, nitratite or soda niter. Sodium nitrate is a white deliquescent solid very soluble in water.
The use of Nitratine or Chilean Saltpeter once an important source of nitrates for fertilizer and other chemical uses including gunpowder and fireworks.. The commencement of the export of nitrates to the Europe and the US in the 1830s marked the most important milestone in the history of the nitrate industry and brought consequences for the economies of the three countries sharing the Atacama ...
This process was used from Lydian to post-medieval times. It is a solid state process relying on common salt as the active ingredient but it is possible to use a mixture of saltpetre (KNO 3) and green vitriol (FeSO 4). The basic process involved the mixing of argentiferous gold foil (in later periods granules were used), common salt and brick ...