Checking the quality of Saltpetre (Nitre, Potassium Nitrate, or KN03). Saltpetre is the principal ingredient in gunpowder, and is still used in the preservation of some foods
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Framed Print of Checking the quality of Saltpetre (Nitre, Potassium Nitrate, or KN03). Saltpetre is the principal ingredient in gunpowder, and is still used in the preservation of some foods
540750 Checking the quality of Saltpetre (Nitre, Potassium Nitrate, or KN03). 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 1683 English edition of Beschreibung allerfurnemisten mineralischen Ertzt, Lazarus Ercker, (Prague, 1574). Copperplate engraving.; Universal History Archive/UIG. © Universal History Archive/UIG / Bridgeman Images
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Media ID 38139386
1574 1683 Allerfurnemisten Asthma Beschreibung Checking Chemistry Conditions Diuretic Edition Ercker Ertzt Explosive Foods Gunpowder Ingredient Lazarus Metallurgical Metallurgy Mineralischen Prague Preservation Principal Quality
Modern 14"x12" (36x31cm)
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Wood effect frame, card mounted, 10x8 fade resistant photo print. Overall outside dimensions 14x12 inches (36x31cm). Environmentally and ozone friendly, 40mm wide x 15mm Polycore® moulding has the look of real wood, is durable and light and easy to hang. Biodegradable and made with non-chlorinated gases (no toxic fumes) it is efficient; producing 100 tons of polystyrene can save 300 tons of trees! Prints are glazed with lightweight, shatterproof, optical clarity acrylic (providing the same general protection from the environment as glass). The back is stapled hardboard with a sawtooth hanger attached. Note: measurements provided are estimated outer dimensions, which include both the image and the frame. While we aim to keep sizing consistent, exact dimensions may vary slightly due to differences in print size or production requirements, which may result in a variation in the overall size (up to approximately 2.5cm (1"))
These are individually made so all sizes are approximate
Estimated Image Size (if not cropped) is 23.8cm x 19.3cm (9.4" x 7.6")
Estimated Product Size is 36cm x 31cm (14.2" x 12.2")



































