<p><b>亞硫酸銫</b>是一種無機化合物，化學式為Cs<sub>2</sub>SO<sub>3</sub>，易溶於水，微溶於乙醇。它和硝普銫反應，可以得到暗紅色的Cs<sub>4</sub>Fe(CN)<sub>5</sub>NOSO<sub>3</sub>晶體。它在二氧化硫中是一種鹼，可以和氯化亞碸發生中和反應：</p>
<dl><dd>Cs<sub>2</sub>SO<sub>3</sub> + SOCl<sub>2</sub> → 2 CsCl + 2 SO<sub>2</sub></dd></dl><h2><span id=".E5.8F.82.E8.80.83.E6.96.87.E7.8C.AE"></span><span id="参考文献">參考文獻</span></h2>

<h2><span id=".E6.8B.93.E5.B1.95.E9.98.85.E8.AF.BB"></span><span id="拓展阅读">拓展閱讀</span></h2>
<p><small>
</small></p><small><ul><li><cite class="citation journal">Christian Archer, Jean Durand, Louis Cot, Jean Louis Galigne. Sur quelques sulfites de cations monovalents; étude structurale de LiCsSO 3 •2H 2 O. Canadian Journal of Chemistry. 1979-04-15, <b>57</b> (8): 899–903 <span> [<span>2021-10-22</span>]</span>. <span title="國際標準連續出版物號">ISSN 0008-4042</span>. <span title="數位物件識別號">doi:10.1139/v79-148</span> <span title="連接到英語網頁">（英語）</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E4%BA%9A%E7%A1%AB%E9%85%B8%E9%93%AF&amp;rft.atitle=Sur+quelques+sulfites+de+cations+monovalents%3B+%C3%A9tude+structurale+de+LiCsSO+3+%E2%80%A22H+2+O&amp;rft.au=Christian+Archer%2C+Jean+Durand%2C+Louis+Cot%2C+Jean+Louis+Galigne&amp;rft.date=1979-04-15&amp;rft.genre=article&amp;rft.issn=0008-4042&amp;rft.issue=8&amp;rft.jtitle=Canadian+Journal+of+Chemistry&amp;rft.pages=899-903&amp;rft.volume=57&amp;rft_id=http%3A%2F%2Fwww.nrcresearchpress.com%2Fdoi%2F10.1139%2Fv79-148&amp;rft_id=info%3Adoi%2F10.1139%2Fv79-148&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal"><span> </span></span></li></ul></small><small></small><p><small></small>
</p>
<!-- 
NewPP limit report
Parsed by mw2368
Cached time: 20230504233835
Cache expiry: 1814400
Reduced expiry: false
Complications: []
CPU time usage: 0.241 seconds
Real time usage: 0.377 seconds
Preprocessor visited node count: 5609/1000000
Post‐expand include size: 108498/2097152 bytes
Template argument size: 23346/2097152 bytes
Highest expansion depth: 31/100
Expensive parser function count: 6/500
Unstrip recursion depth: 0/20
Unstrip post‐expand size: 3579/5000000 bytes
Lua time usage: 0.057/10.000 seconds
Lua memory usage: 3574557/52428800 bytes
Number of Wikibase entities loaded: 0/400
--><!--
Transclusion expansion time report (%,ms,calls,template)
100.00%  294.366      1 -total
 42.92%  126.355      1 Template:Chembox
 24.98%   73.524      1 Template:亚硫酸盐
 24.31%   71.559      2 Template:周期表框架
 23.51%   69.204      2 Template:Navbox
 18.95%   55.787      2 Template:周期表框架/元素表
 16.30%   47.983     64 Template:Chembox_entry
 15.89%   46.768      1 Template:Reflist
 13.87%   40.843      2 Template:Cite_book
 13.61%   40.060      1 Template:Chembox_NameEn
-->
**亞硫酸銫**是一種無機化合物，化學式為 Cs2SO3，易溶於水，微溶於乙醇。它和硝普銫反應，可以得到暗紅色的 Cs4Fe(CN)5NOSO3 晶體。它在二氧化硫中是一種鹼，可以和氯化亞碸發生中和反應：

　
: Cs2SO3 + SOCl2 → 2 CsCl + 2 SO2

## 參考文獻

## 拓展閱讀

* Christian Archer, Jean Durand, Louis Cot, Jean Louis Galigne. Sur quelques sulfites de cations monovalents; étude structurale de LiCsSO 3 •2H 2 O. Canadian Journal of Chemistry. 1979-04-15, **57** (8): 899–903 [2021-10-22]. ISSN 0008-4042. doi:10.1139/v79-148 （英語）.
18832-76-3