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potassium nitrate

potassium nitrate, chemical compound, KNO3, occurring as colorless, prismatic crystals or as a white powder; it is found pure in nature as the mineral saltpeter, or niter. (The name saltpeter is also applied to sodium nitrate, although less frequently.) It is slightly soluble in cold water and very soluble in hot water. Potassium nitrate is prepared commercially by the reaction of potassium chloride with sodium nitrate. When potassium nitrate decomposes (on heating) it releases oxygen; it has been used extensively as the oxygen-supplying component of gunpowder since about the 12th cent. It is also used in explosives, fireworks, model rocket propellants, matches, and fertilizers, as a preservative in foods (especially meats), and in the manufacture of nitric acid and of glass.

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"potassium nitrate." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 24 Jul. 2017 <http://www.encyclopedia.com>.

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"potassium nitrate." The Columbia Encyclopedia, 6th ed.. . Retrieved July 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/potassium-nitrate

saltpetre

saltpetre potassium nitrate, nitre. XVI. alt., by assim. to SALT, of †salpetre (XIV) — (O)F. salpètre — medL. salpetra, prob. for *sāl petræ ‘salt of rock’ (the substance being so named because it occurs as an incrustation on stones).

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"saltpetre." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 24 Jul. 2017 <http://www.encyclopedia.com>.

"saltpetre." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (July 24, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/saltpetre-0

"saltpetre." The Concise Oxford Dictionary of English Etymology. . Retrieved July 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/saltpetre-0

saltpetre

saltpetre (Bengal saltpetre) Potassium nitrate.

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"saltpetre." A Dictionary of Food and Nutrition. . Encyclopedia.com. 24 Jul. 2017 <http://www.encyclopedia.com>.

"saltpetre." A Dictionary of Food and Nutrition. . Encyclopedia.com. (July 24, 2017). http://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/saltpetre

"saltpetre." A Dictionary of Food and Nutrition. . Retrieved July 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/saltpetre

potassium nitrate

potassium nitrate See nitrates; saltpetre.

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"potassium nitrate." A Dictionary of Food and Nutrition. . Encyclopedia.com. 24 Jul. 2017 <http://www.encyclopedia.com>.

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"potassium nitrate." A Dictionary of Food and Nutrition. . Retrieved July 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/potassium-nitrate

saltpetre

saltpetre See NITRE.

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"saltpetre." A Dictionary of Earth Sciences. . Encyclopedia.com. 24 Jul. 2017 <http://www.encyclopedia.com>.

"saltpetre." A Dictionary of Earth Sciences. . Encyclopedia.com. (July 24, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/saltpetre

"saltpetre." A Dictionary of Earth Sciences. . Retrieved July 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/saltpetre

saltpetre

saltpetrecater, crater, creator, curator, data, debater, delator, dumbwaiter, equator, freighter, frustrater, gaiter, grater, gyrator, hater, later, legator, mater, negator, pater, peseta, plater, rotator, skater, slater, stater, tater, traitor, ultimata, understater, upstater, waiter •painter •taster, waster •gamester • aviator • tailgater •hesitater • shirtwaister •Akita, Anita, arboreta, beater, beta, Bhagavadgita, cheater, cheetah, Demeter, Dieter, dolce vita, eater, eta, Evita, excreta, fetor, granita, greeter, heater, Juanita, litre (US liter), Lolita, maltreater, margarita, meter, metre, Peta, peter, praetor (US pretor), repeater, Rita, saltpetre (US saltpeter), secretor, Senhorita, señorita, Sita, skeeter, teeter, terra incognita, theta, treater, tweeter, ureter, veleta, zeta •Batista, Dniester, Easter, feaster, keister, leister, quaestor •speedster •deemster, teamster •scenester • browbeater • windcheater •beefeater •millilitre (US milliliter) •decilitre (US deciliter) •centilitre (US centiliter) •kilolitre (US kiloliter) •ammeter • Machmeter •millimetre (US millimeter) •decimetre (US decimeter) •altimeter •centimetre (US centimeter) •nanometre (US nanometer) •micrometer, micrometre •decametre (US dekameter) •kilometre (US kilometer) • autopista •anteater

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"saltpetre." Oxford Dictionary of Rhymes. . Encyclopedia.com. 24 Jul. 2017 <http://www.encyclopedia.com>.

"saltpetre." Oxford Dictionary of Rhymes. . Encyclopedia.com. (July 24, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/saltpetre

"saltpetre." Oxford Dictionary of Rhymes. . Retrieved July 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/saltpetre