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nitre |
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nitrePotassium nitrate, KNO3, a mineral found on and just under the ground in desert regions; used in explosives. Nitre occurs in Bihar, India, Iran, and Cape Province, South Africa. The salt was formerly used for the manufacture of gunpowder, but the supply of nitre for explosives is today largely met by making the salt from nitratine (also called Chile saltpetre, NaNO3). Saltpetre is a preservative and is widely used for curing meats. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Some were condensing air into a dry tangible substance, by extracting the nitre, and letting the aqueous or fluid particles percolate; others softening marble, for pillows and pin-cushions; others petrifying the hoofs of a living horse, to preserve them from foundering. Furious vortices of sulphur and nitre, devouring shoals of fire which caught every object, the terrible thunder of the explosion, this is what the second which followed disclosed in that cavern of horrors. The regulus of cobalt, dissolved in spirit of nitre, gives a red. |
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