查看“︁四氟化镨”︁的源代码

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|   CASNo = 15192-24-2
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|   Formula = PrF<sub>4</sub>
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|   Appearance = 无色固体<ref name=Mazej>{{cite journal|journal=Journal of Fluorine Chemistry|volume=118|issue=1-2|language=en|date=2002-12|pages=127–129|doi=10.1016/S0022-1139(02)00223-3|url=http://linkinghub.elsevier.com/retrieve/pii/S0022113902002233|title=Room temperature syntheses of lanthanoid tetrafluorides (LnF4, Ln = Ce, Pr, Tb)|accessdate=2019-03-26|author=Z Mazej|archive-date=2019-11-28|archive-url=https://web.archive.org/web/20191128204219/https://linkinghub.elsevier.com/retrieve/pii/S0022113902002233|dead-url=no}}</ref>
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'''四氟化镨'''是[[镧系元素]][[镨]]的[[氟化物]]之一，化学式为PrF<sub>4</sub>，它于90 °C分解为[[三氟化镨]]和氟气。<ref name=Spitsyn />

==制备==
它可由[[十一氧化六镨]]和[[氟气]]在无水[[氟化氢]]中紫外线照射下反应得到。<ref name=Mazej />它也能由[[三氟化镨]]或十一氧化六镨和[[二氟化氪]]反应得到，以氧化物为原料产率可达100%。<ref name=Spitsyn>Spitsyn, V. I.; Kiselev, Yu. M.; Martynenko, L. I.; Prusakov, V. N.; Sokolov, V. B. Synthesis of praseodymium tetrafluoride{{ru}}. ''Doklady Akademii Nauk SSSR'', 1974. 219 (3): 621-624. ISSN: 0002-3264.</ref>另一种方法是Na<sub>2</sub>PrCl<sub>5</sub>经过氟化得到Na<sub>2</sub>PrF<sub>6</sub>，它在无水氟化氢中分解，得到四氟化镨。<ref>{{cite journal|journal=Inorganic and Nuclear Chemistry Letters|volume=2|issue=1|language=en|date=1966-1|pages=13–14|doi=10.1016/0020-1650(66)80082-X|url=https://linkinghub.elsevier.com/retrieve/pii/002016506680082X|title=The preparation of praseodymium tetrafluoride|accessdate=2019-03-26|author=J. Soriano, M. Givon, J. Shamir|archive-date=2019-08-10|archive-url=https://web.archive.org/web/20190810200051/https://linkinghub.elsevier.com/retrieve/pii/002016506680082X|dead-url=no}}</ref>
:<math>\mathsf{ PrO_2 + 2 KrF_2 \ \xrightarrow{}\ PrF_4 + O_2 + 2 Kr }</math>
:<math>\mathsf{ Na_2[PrF_6] + 2 HF \ \xrightarrow{}\ PrF_4\downarrow + 2 NaHF_2 }</math>

==参考文献==
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{{镨化合物}}
{{氟化物}}

[[Category:镨化合物]]
[[Category:氟化物]]