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Crystallization of saltpetre (nitre, potassium nitrate, or KN03), 1683
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Crystallization of saltpetre (nitre, potassium nitrate, or KN03), 1683
Crystallization of saltpetre (nitre, potassium nitrate, or KN03), 1683. Saltpetre is the principal ingredient in gunpowder, and is still used in the preservation of some foods. In medicine it was used internally as a diuretic, but now is only used externally for a number of conditions, such as asthma. From a 1683 English edition of Beschreibung allerfurnemisten mineralischen Ertzt by Lazarus Ercker. (Prague, 1574)
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Media ID 14865426
© Oxford Science Archive / Heritage-Images
Barrel Barrels Chemical Chemical Industry Chemistry Ercker Industrial Chemistry Lazarus Lazarus Ercker Manufacturing Oxford Science Archive Saltpetre Crystallization Nitre Potassium Nitrate
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This print captures the intricate process of crystallization of saltpetre, also known as potassium nitrate or KN03, in 1683. Saltpetre holds great historical significance as it is the principal ingredient in gunpowder, making this image a testament to its role in warfare during that era. However, saltpetre's uses extended beyond weaponry; it was also utilized for food preservation and had medicinal applications. The skilled worker depicted here is engrossed in his task, carefully tending to the pan filled with saltpetre crystals. His focused expression reflects the precision required in this chemical industry practice. Surrounding him are barrels symbolizing trade and manufacturing, emphasizing the economic importance of such processes during the 16th and 17th centuries. Lazarus Ercker's engraving beautifully captures both the scientific nature of this work and its historical context. The monochrome aesthetic adds a sense of timelessness to the image, transporting us back to an era where industrial chemistry played a crucial role. As we gaze upon this fascinating piece from Ercker's "Beschreibung allerfurnemisten mineralischen Ertzt" we are reminded not only of humanity's relentless pursuit of knowledge but also our ability to harness natural resources for various purposes throughout history.
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