氟硅酸锂

氟硅酸锂
识别
CAS号 17347-95-4
PubChem 13629069
SMILES
 
  • [Li+].[Li+]
EC编号 241-372-6
性质
化学式 F6Li2Si
摩尔质量 155.96 g·mol−1
外观 白色晶体[1]
氣味 无
密度 2.8 g·cm−3[2]
熔点 250 °C（分解）[3]
溶解性（水） 可溶[1]
溶解性 可溶于甲醇[1]
相关物质
其他阴离子 六氟磷酸锂
其他阳离子 氟硅酸钠
氟硅酸钾
若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。

氟硅酸锂是锂的氟硅酸盐，化学式为Li2SiF6。

制备

氟硅酸锂可以由氟硅酸和氢氧化锂或碳酸锂反应而成的。它也可以由四氟化硅和氟化锂直接反应而成。[4]氟硅酸锂是由 B. Cox 于1954年首次合成的。[3]

性质

氟硅酸锂是一种白色固体，可溶于水和甲醇。[1]它在 250 °C 时分解成氟化锂和四氟化硅。它是三方晶系的，和氟硅酸钠一样。[3]

参考资料

  1. ^ 1.0 1.1 1.2 1.3 Datenblatt Lithium hexafluorosilicate bei AlfaAesar, abgerufen am 2016-11-25.
  2. ^ R. Blachnik, [《氟硅酸锂》在Google Books的內容。 Taschenbuch für Chemiker und Physiker Band 3: Elemente, anorganische Verbindungen und Materialien, Minerale], Springer-Verlag. 2013: pp. 542,
    ISBN 978-3-642-58842-6
    （德文）     
  3. ^ 3.0 3.1 3.2 Hinteregger, Ernst; Wurst, Klaus; Niederwieser, Niklas; Heymann, Gunter; Huppertz, Hubert: Pressure-supported crystal growth and single-crystal structure determination of Li2SiF6. In: Zeitschrift für Kristallographie - Crystalline Materials, 2014, Band 229, Heft 2, S. 77–82, doi:10.1515/zkri-2013-1622.
  4. ^ Entry on Fluorosilicate. at: Römpp Online. Georg Thieme Verlag, retrieved {{{Datum}}}.

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