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硫化銣

硫化銣
IUPAC名
Rubidium sulfide
识别
CAS号 31083-74-6  checkY
性质
化学式 Rb2S
摩尔质量 203.00 g·mol⁻¹
外观 白色晶体[1]
密度 2.912 g/cm3[2]
熔点 530 °C[3]
溶解性 水解生成硫氫化銣[2]
溶解性(其他溶剂) 可溶于乙醇甘油
结构
晶体结构 立方晶系:反螢石型结构
危险性
警示术语 R:R31, R34
安全术语 S:S26, S45
主要危害 有毒
相关物质
其他阴离子 氧化銣
硒化銣
碲化銣
釙化銣
其他阳离子 硫化鋰硫化鈉硫化钾硫化銫
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

硫化銣是一種無機化合物無機鹽類,其化學式為Rb2S。常溫下為無色易朝解固體,它的性質都與同族硫化物:硫化鋰硫化鈉硫化鉀類似。

制備

可將硫化氫溶解在氫氧化銣水溶液,會先生成硫氫化銣的中間產物,最終會形成硫化銣,即可制備硫化銣。[4][5]

性質

物理性質

硫化銣的晶體結構為立方晶系,它的晶體結構與硫化鋰硫化鈉硫化鉀類似,都為反螢石型結構,其空間群為,晶格參數為 a =765.0 pm,且每單元位晶胞包含4個單元。[2]

化學性質

硫化銣會與氫氣氛围中反應,生成五硫化铷(Rb2S5)。[5][6]

參考文獻

  1. ^ Wilhelm Klemm, Heinrich Sodomann, Paul Langmesser. Beiträge Zur Kenntnis der Alkalimetallchalkogenide. Zeitschrift für anorganische und allgemeine Chemie. 1939-05-05, 241 (2-3): 281–304 [2020-07-04]. doi:10.1002/zaac.19392410216 (英语). 
  2. ^ 2.0 2.1 2.2 Jean D'Ans, Ellen Lax: Taschenbuch für Chemiker und Physiker. 3. Elemente, anorganische Verbindungen und Materialien, Minerale, Band 3. 4. Auflage, Springer, 1997, ISBN 978-3-5406-0035-0, S. 692 (《硫化銣》在Google Books的內容。).
  3. ^ Dale L. Perry, Sidney L. Phillips: Handbook of inorganic compounds. CRC Press, 1995, ISBN 978-0-8493-8671-8, S. 336 (《硫化銣》在Google Books的內容。).
  4. ^ Wilhelm Blitz, Ernst Wilke-Dörfurt: "Über Sulfide des Rubidiums und Cäsiums" in Zeitschr. f. anorg. Chem. 1906. 48, S. 297–317. Volltext
  5. ^ 5.0 5.1 R. Abegg, F. Auerbach: 'Handbuch der anorganischen Chemie'. Verlag S. Hirzel, Bd. 2, 1908. S. 430.Volltext
  6. ^ Wilhelm Blitz, Ernst Wilke-Dörfurt: Ueber die Pentasulfide des Rubidiums und Cäsiums. In Ber. d. dt. chem. Ges. 1905, 38, 1, S. 123–130, doi:10.1002/cber.19050380114.
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