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Potassium nitride is an unstable chemical compound. Several syntheses were erroneously claimed in the 19th century, and by 1894 it was assumed that it did not exist. However, a synthesis of this compound was claimed in 2004. It is observed to have the anti-TiI3 structure below 233 K (−40 °C; −40 °F), although a Li3P-type structure should be more stable. Above this temperature, it converts to an orthorhombic phase. This compound was produced by the reaction of potassium metal and liquid nitrogen at 77 K (−196.2 °C; −321.1 °F) under vacuum: 6K + N2 → 2K3N

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  • Kalia nitrido (eo)
  • Potassium nitride (en)
  • Нитрид калия (ru)
  • 氮化钾 (zh)
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  • Kalia nitrido aŭ K3N estas neorganika kombinaĵo, malstabila eksplodema salo de nitrogeno kaj kalio, kiu facile malkomponiĝas per hejtado en ĝiaj konstituaj elementoj. Ĝi estas sintezata per termo-malkomponado de potasamido aŭ per rekta reakcio de ĝiaj elementoj. (eo)
  • Нитри́д ка́лия — бинарное неорганическое соединениекалия и азота с формулой зеленовато-чёрные кристаллы, реагирует с водой. (ru)
  • 氮化钾是一种不稳定的无机化合物，化学式 K3N。19世纪时有人声称合成了氮化钾，但到了1894年时人们认为它不存在。 氮化钾于2004年被合成。在233 K（−40 °C；−40 °F）以下时，它是反TiI3结构的，不过Li3P结构应该会更稳定。超过这个温度时，氮化钾会变成正交晶系。氮化钾可以由金属钾和液氮在77 K（−196.2 °C；−321.1 °F）的真空下反应而成： 6K + N2 → 2K3N 在室温下，氮化钾会分解成氮气和钾。 (zh)
  • Potassium nitride is an unstable chemical compound. Several syntheses were erroneously claimed in the 19th century, and by 1894 it was assumed that it did not exist. However, a synthesis of this compound was claimed in 2004. It is observed to have the anti-TiI3 structure below 233 K (−40 °C; −40 °F), although a Li3P-type structure should be more stable. Above this temperature, it converts to an orthorhombic phase. This compound was produced by the reaction of potassium metal and liquid nitrogen at 77 K (−196.2 °C; −321.1 °F) under vacuum: 6K + N2 → 2K3N (en)
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  • Potassium nitride (en)
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  • Kalia nitrido aŭ K3N estas neorganika kombinaĵo, malstabila eksplodema salo de nitrogeno kaj kalio, kiu facile malkomponiĝas per hejtado en ĝiaj konstituaj elementoj. Ĝi estas sintezata per termo-malkomponado de potasamido aŭ per rekta reakcio de ĝiaj elementoj. (eo)
  • Potassium nitride is an unstable chemical compound. Several syntheses were erroneously claimed in the 19th century, and by 1894 it was assumed that it did not exist. However, a synthesis of this compound was claimed in 2004. It is observed to have the anti-TiI3 structure below 233 K (−40 °C; −40 °F), although a Li3P-type structure should be more stable. Above this temperature, it converts to an orthorhombic phase. This compound was produced by the reaction of potassium metal and liquid nitrogen at 77 K (−196.2 °C; −321.1 °F) under vacuum: 6K + N2 → 2K3N This compound decomposes back into potassium and nitrogen at room temperature. This compound is unstable due to steric hindrance. (en)
  • Нитри́д ка́лия — бинарное неорганическое соединениекалия и азота с формулой зеленовато-чёрные кристаллы, реагирует с водой. (ru)
  • 氮化钾是一种不稳定的无机化合物，化学式 K3N。19世纪时有人声称合成了氮化钾，但到了1894年时人们认为它不存在。 氮化钾于2004年被合成。在233 K（−40 °C；−40 °F）以下时，它是反TiI3结构的，不过Li3P结构应该会更稳定。超过这个温度时，氮化钾会变成正交晶系。氮化钾可以由金属钾和液氮在77 K（−196.2 °C；−321.1 °F）的真空下反应而成： 6K + N2 → 2K3N 在室温下，氮化钾会分解成氮气和钾。 (zh)
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  • Potassium nitride (en)
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