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铬酸锶

铬酸锶
识别
CAS号 7789-06-2  checkY
PubChem 24599
SMILES
 
  • [Sr+2].[O-][Cr](=O)(=O)[O-]
EC编号 232-142-6
性质
化学式 CrO4Sr
摩尔质量 203.61 g·mol−1
外观 柠檬黄色固体[1]
密度 3.89 g·cm−3[1]
熔点 约 500 °C(分解)[1]
溶解性 1.2 g/L 当 15 °C[1]
相关物质
其他阴离子 硫酸锶
硒酸锶
其他阳离子 铬酸铍
铬酸镁
铬酸钙
铬酸钡
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

铬酸锶铬酸盐,化学式 SrCrO4

制备

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铬酸锶可以由氯化锶铬酸钾反应而成。

它也可以由碳酸锶和铬酸反应而成。[2]

性质

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铬酸锶是一种柠檬黄色固体,难溶于水。它在约 500 °C下分解。[1] 它和硫酸根反应,形成硫酸锶[3]

铬酸锶会和碳酸锶反应,形成铬(V)酸锶 Sr3(CrO4)2[4]

它和铬酸反应,形成重铬酸锶。[2]

铬酸锶的晶体结构是和独居石一样的单斜晶系,空间群 P21/n (No. 14),晶格参数 a = 706.5 pm、b = 737.5 pm、c = 674.1 pm 和β = 103.08°。[5]

参考资料

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  1. ^ 1.0 1.1 1.2 1.3 1.4 Record of Strontiumchromat in the GESTIS Substance Database from the IFA英语Institute for Occupational Safety and Health
  2. ^ 2.0 2.1 G. Wyrouboff: Ueber die Krystallform einiger Dichromate. In: Zeitschrift für Krystallographie und Mineralogie. 1894, 22, S. 207. Volltext
  3. ^ Thomas Brock, Michael Groteklaes, Peter Mischke: Lehrbuch der Lacktechnologie. Vincentz, Hannover 2000, ISBN 3-87870-569-7, S. 155.
  4. ^ K. A. Wilhelmi, O. Jonsson: X-Ray Studies on Some Alkali and Alkaline-Earth Chromates(V). In: Acta Chem. Scand. 1965, 19, doi:10.3891/acta.chem.scand.19-0177, S. 177–184.
  5. ^ H. Effenberger, F. Pertlik: "Four monazite type structures: comparison of SrCrO4, SrSeO4, PbCrO4 (crocoite), and PbSe04" in Zeitschrift für Kristallographie 1986, 176, S. 75 - 83. Volltext页面存档备份,存于互联网档案馆) (PDF-Datei; 718 kB)
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铬酸锶
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