查看“︁亚硫酸钡”︁的源代码

{{chembox
| verifiedrevid = 455116033
| Name = 亚硫酸钡
| CustomizedImage= [[File:Ba2+.svg|x45px|Struktur des Ba<sup>2+</sup>-Ions]] [[File:Sulfit-Ion.svg|100px|Struktur des Sulfitions]]
| ImageSize = 
| ImageName = 
| IUPACName = 亚硫酸钡
| OtherNames = 
| Section1 = {{Chembox Identifiers
| CASNo = 7787-39-5
| CASNo_Ref = {{cascite|correct|??}}
| PubChem = 516931
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 450991
| SMILES = [Ba+2].[O-]S([O-])=O
| InChI = 1/Ba.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+2;/p-2
| InChIKey = ARSLNKYOPNUFFY-NUQVWONBAA
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/Ba.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+2;/p-2
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = ARSLNKYOPNUFFY-UHFFFAOYSA-L
 }}
| Section2 = {{Chembox Properties
| Formula = BaSO<sub>3</sub> 
| MolarMass = 217.391
| Appearance = 白色晶体 <ref name=" CRC Handbook of Chemistry and Physics 97th Edition " />
| Density = 4.44 g/cm<sup>3</sup><ref name=" CRC Handbook of Chemistry and Physics 97th Edition "> {{Cite book |  date = 2016-06-24  |  title = CRC Handbook of Chemistry and Physics 97th Edition | accessdate = 2017-09-16 | pages = 4-50 | language = 英语 | ISBN = 1-4987-5428-7 | }}  </ref>
| Solubility = 0.0011 g/100 mL<ref name=" CRC Handbook of Chemistry and Physics 97th Edition " />
| SolubleOther = 不溶于[[酒精]]<ref name=" CRC Handbook of Chemistry and Physics 97th Edition " />
}}
| Section3 = {{Chembox Structure
| CrystalStruct = 单斜 <ref name=" CRC Handbook of Chemistry and Physics 97th Edition " />
| Coordination =
| MolShape = }}
}}

'''亚硫酸钡'''是[[钡]]的[[亚硫酸盐]]，分子式为[[钡|Ba]][[亚硫酸盐|SO<sub>3</sub>]]。它是白色粉状物，可以用于造纸。像其他的[[:Category:钡化合物|钡化合物]]一样，它是有毒的。<ref name="sci">barium sulfite. Answers.com. McGraw-Hill Dictionary of Scientific and Technical Terms, McGraw-Hill Companies, Inc., 2003. http://www.answers.com/topic/barium-sulfite {{Wayback|url=http://www.answers.com/topic/barium-sulfite |date=20090207052408 }}, accessed July 19, 2009.</ref>它是通过[[碳热反应]]把[[硫酸钡]]还原成[[硫化钡]]的中间体。<ref>{{Ullmann |doi=10.1002/14356007.a03_325.pub2|chapter=Barium and Barium Compounds|title=Ullmann's Encyclopedia of Industrial Chemistry|year=2007|last1=Kresse|first1=Robert|last2=Baudis|first2=Ulrich|last3=Jäger|first3=Paul|last4=Riechers|first4=H. Hermann|last5=Wagner|first5=Heinz|last6=Winkler|first6=Jochen|last7=Wolf|first7=Hans Uwe|isbn=978-3527306732}}</ref>
:BaSO<sub>4</sub>  +  CO  →  BaSO<sub>3</sub>  +  CO<sub>2</sub>

==制备==
亚硫酸钡可以由[[亚硫酸钠]]和[[氯化钡]]<ref name="Nonstrant">{{cite book| author= D. Van Nonstrant Company | title= Elementary General Chemistry }}</ref>或[[氢氧化钡]]<ref name="CR">C. Saint-Pierre: "Sur la décomposition spontanée de divers bisulfites" in ''Compt. Rend. Hebd.'' '''1872''', ''74'', S. 52–53. [http://gallica.bnf.fr/ark:/12148/bpt6k3031q.image.langDE.r=comptes%20rendus%20hebdomadaires.swf Volltext]</ref>而成。

:<math>\mathrm{Na_2SO_3 + BaCl_2 \longrightarrow 2 \ NaCl + BaSO_3}</math>
:<math>\mathrm{Na_2SO_3 + Ba(OH)_2 \longrightarrow 2 \ NaOH + BaSO_3}</math>

== 性质==
=== 物理性质 ===
亚硫酸钡是一种白色无臭固体，不可燃，难溶于水，<ref name="GESTIS">{{GESTIS|ZVG=4670|CAS=7787-39-5|Abruf=2012-01-22}}</ref>易溶于酸。<ref name="Abegg">R. Abegg, F. Auerbach: ''Handbuch der anorganischen Chemie'', Verlag S. Hirzel, Bd. 2, 1908. S.&nbsp;270; [http://www.archive.org/stream/a2handbuchderano02abeguoft#page/270/mode/2up Volltext]</ref>它是[[单斜晶系]]的，<ref name="Lax">Jean D'Ans, Ellen Lax: ''Taschenbuch für Chemiker und Physiker. 3. Elemente, anorganische Verbindungen und Materialien, Minerale, Band 3.'' 4. Auflage, Springer, 1997, ISBN 978-3-540-60035-0, S.&nbsp;330. .</ref>不过[[三斜晶系]]的亚硫酸钡也是已知的。<ref name="Braithwaithe">R. S. W. Braithwaite, A. R. Kampf, R. G. Pritchard, R. P. H. Lamb: "The occurrence of thiosulfates and other unstable sulfur species as natural weathering products of old smelting slags" in ''Mineralogy and Petrology'' '''1993''', ''47''(2-4), S. 255–261. {{doi|10.1007/BF01161570}}</ref>

=== 化学性质 ===
亚硫酸钡可以被[[过氧化氢]]氧化成[[硫酸钡]]。<ref name="Classen">A. Classen, O. Bauer: "Ueber die Anwendbarkeit des Wasserstoffsuperoxyds in der analytischen Chemie" in ''Berichte der deutschen chemischen Gesellschaft'' '''1883''', S. 1061–1074. [http://gallica.bnf.fr/ark:/12148/bpt6k90696b.image.langDE.r=berichte%20der%20deutschen%20chemischen%20gesellschaft.swf Volltext]</ref>

:<math>\mathrm{BaSO_3 + H_2O_2 \longrightarrow BaSO_4 + H_2O}</math> 

在没有空气的情况下退火时，亚硫酸钡会分解成硫酸钡和[[硫化钡]]。<ref name="Abegg"/>

== 危险性 ==
亚硫酸钡的LD<sub>50</sub>为375mg/kg。它对皮肤和眼睛有刺激性。虽然亚硫酸钡不可燃，但它加热分解会产生有害的[[硫氧化物]]气体。它与酸反应，放出[[二氧化硫]]<ref>{{Cite web |url=http://www.st.rim.or.jp/~shw/MSDS/02039350.pdf |title=化学物質等安全データシート（昭和化学株式会社） |access-date=2021-08-03 |archive-date=2021-08-03 |archive-url=https://web.archive.org/web/20210803153420/http://www.st.rim.or.jp/~shw/MSDS/02039350.pdf }}</ref>。

==参考文献==
{{reflist}}
{{钡化合物}}
{{亚硫酸盐}}

[[Category:钡化合物]]
[[Category:亚硫酸盐]]
[[Category:缺少物质图片的化学品条目]]