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碘化镧

维基百科，自由的百科全书

碘化镧是一种无机化合物，化学式为LaI₃。

{\mathsf {2La+3I_{2}\ {\xrightarrow {\Delta }}\ 2LaI_{3}}}

{\mathsf {La_{2}O_{3}+6NH_{4}I\ {\xrightarrow {350^{o}C}}\ 2LaI_{3}+6NH_{3}+3H_{2}O}}

碘化镧、磷酸镧和二氧化硅在800℃下反应，生成三碘化磷：^[3]

5 LaI₃ + 3 LaPO₄ + 8 SiO₂ → 3 PI₃ + 3 I₂ + 4 La₂Si₂O₇

用THF 萃取LaI₃可以得到无色的LaI₃(THF)₄。^[4]

^^1.0 ^1.1 ^1.2 ^1.3David R. Lide (Ed.):CRC Handbook of Chemistry and Physics. 90^th Edition (Internet Version: 2010), CRC Press/Taylor and Francis, Boca Raton, FL,Properties of the Elements and Inorganic Compounds, S. 4-69.
^Young, Ralph C.; Hastings, Jane L. Reaction of Lanthanum Oxide with Ammonium Iodide. Journal of the American Chemical Society (American Chemical Society (ACS)). 1937,59 (4): 765–766.ISSN 0002-7863.doi:10.1021/ja01283a510.
^Haschke, John M. Reactions of strontium, lanthanum, and europium iodides. Direct preparation of phosphorus triiodide from phosphates. Inorganic Chemistry (American Chemical Society (ACS)). 1976-03-01,15 (3): 508–511.ISSN 0020-1669.doi:10.1021/ic50157a003.
^Izod, Keith; Liddle, Stephen T.; Clegg, William. A Convenient Route to Lanthanide Triiodide THF Solvates. Crystal Structures of LnI3(THF)4 [Ln = Pr] and LnI3(THF)3.5 [Ln = Nd, Gd, Y]. Inorganic Chemistry (American Chemical Society (ACS)). 2003-12-09,43 (1): 214–218.ISSN 0020-1669.doi:10.1021/ic034851u.

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