查看“︁铬酸锶”︁的源代码

{{Chembox
| ImageFile= Strontiumchromat.png
| ImageFile2 = Stronsiyum_kromat_kristalleri.jpg
| ImageName2 = 铬酸锶样品
|Section1={{Chembox Identifiers
| CASNo=7789-06-2
| CASNo_Ref = {{cascite|correct|CAS}}
| EC-number= 232-142-6
| PubChem        = 24599
| ChemSpider      = 
|SMILES=[Sr+2].[O-][Cr](=O)(=O)[O-]
}}
|Section2={{Chembox Properties
| Appearance= 柠檬黄色固体<ref name="GESTIS">{{GESTIS|Name=Strontiumchromat|ZVG=5370|CAS=7789-06-2|Abruf=2016-07-23}}</ref>
| Sr=1|Cr=1|O=4
| Density= 3.89 g·cm<sup>−3</sup><ref name="GESTIS" />
| MeltingPt= 约 500 °C（分解）<ref name="GESTIS" />
| Solubility= 1.2 g/L 当 15 °C<ref name="GESTIS" />
}}
|Section8={{Chembox Related
|OtherCations=[[铬酸铍]]<br />[[铬酸镁]]<br />[[铬酸钙]]<br />[[铬酸钡]]
|OtherAnions=[[硫酸锶]]<br />[[硒酸锶]]
}}
}}

'''铬酸锶'''是[[锶]]的[[铬酸盐]]，化学式 SrCrO<sub>4</sub>。

== 制备==
铬酸锶可以由[[氯化锶]]和[[铬酸钾]]反应而成。

:<chem>SrCl2 + K2CrO4 -> 2KCl + SrCrO4 v </chem> 

它也可以由[[碳酸锶]]和铬酸反应而成。<ref name="Wyrouboff">G. Wyrouboff: ''Ueber die Krystallform einiger Dichromate.'' In: ''Zeitschrift für Krystallographie und Mineralogie.'' 1894, 22, S. 207. [http://www.archive.org/stream/zeitschriftfrkr19grotgoog#page/n227/mode/2up Volltext]</ref>

== 性质==
铬酸锶是一种柠檬黄色固体，难溶于水。它在约 500&nbsp;°C下分解。<ref name="GESTIS" /> 它和硫酸根反应，形成[[硫酸锶]]。<ref>Thomas Brock, Michael Groteklaes, Peter Mischke: ''Lehrbuch der Lacktechnologie.'' Vincentz, Hannover 2000, ISBN 3-87870-569-7, S. 155.</ref>

铬酸锶会和[[碳酸锶]]反应，形成铬(V)酸锶 Sr<sub>3</sub>(CrO<sub>4</sub>)<sub>2</sub>。<ref name="Wilhelmi">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.</ref>

:<chem>4SrCrO4 + 2SrCO3 ->[{800 °C}] 2Sr3(CrO4)2 + 2CO2 + O2</chem>
它和铬酸反应，形成[[重铬酸锶]]。<ref name="Wyrouboff"/>

:<chem>2SrCrO4 + H2CrO4 -> Sr2Cr2O7 + H2O</chem>

铬酸锶的[[晶体结构]]是和[[独居石]]一样的[[单斜晶系]]，空间群 P2<sub>1</sub>/n (No. 14)，[[晶格参数]] a&nbsp;=&nbsp;706.5&nbsp;[[皮米|pm]]、b&nbsp;=&nbsp;737.5&nbsp;pm、c&nbsp;=&nbsp;674.1&nbsp;pm 和β&nbsp;=&nbsp;103.08°。<ref name="Effenberger">H. Effenberger, F. Pertlik: "Four monazite type structures: comparison of SrCrO<sub>4</sub>, SrSeO<sub>4</sub>, PbCrO<sub>4</sub> (crocoite), and PbSe0<sub>4</sub>" in ''Zeitschrift für Kristallographie'' '''1986''', ''176'', S.&nbsp;75&nbsp;-&nbsp;83. [http://rruff.geo.arizona.edu/doclib/zk/vol176/ZK176_75.pdf Volltext] {{Wayback|url=http://rruff.geo.arizona.edu/doclib/zk/vol176/ZK176_75.pdf |date=20100717060935 }} (PDF-Datei; 718&nbsp;kB)</ref>

== 参考资料==
<references />
{{锶化合物}}
{{铬酸盐}}

[[Category:锶化合物]]
[[Category:铬酸盐]]