查看“︁碱式碳酸铋”︁的源代码

{{medical}}
{{Chembox
| NameEn = Bismuth subcarbonate
| ImageFile = Bismuth_subcarbonate.jpg
| ImageSize = 200px
| IUPACName = 
| OtherNames = 次碳酸铋、碳酸氧铋
| Section1 = {{Chembox Identifiers
| CASNo = 5892-10-4
| CASNo_Ref = {{cascite|correct|??}}
|    PubChem  =  
|    SMILES  =  
|    RTECS  =  
|  UNII_Ref  = {{fdacite|changed|FDA}}|  UNII  =  M41L2IN55T
}}
| Section2 = {{Chembox Properties
|   Formula = Bi<sub>2</sub>O<sub>2</sub>(CO<sub>3</sub>)
|   MolarMass = 509.97 
|   Appearance = 白色至微黄色粉末
|   Density = 6.86 g/cm<sup>3</sup>
|   MeltingPt = 308 °C 分解
|   BoilingPt = 
|   Solubility = 难溶于水
  }}
| Section3 = {{Chembox Hazards
|   MainHazards = 
|   FlashPt = 
|   EUHazardSymbol = {{Chembox EUHazardSymbol|Xn}}
|   Autoignition = 
|   RPhrases = {{R36/37/38}}
|   NFPA-H = 2
|   NFPA-F = 0
|   NFPA-R = 0
  }}
}} 
'''碱式碳酸铋'''是一种[[无机化合物]]，化学式为Bi<sub>2</sub>O<sub>2</sub>(CO<sub>3</sub>)，别名次碳酸铋、碳酸氧铋。

==性质==
白色或微黄色无臭无味粉末，见光逐渐变为褐色。难溶于水、[[乙醇]]及其它有机溶剂，易溶于[[盐酸]]、[[硝酸]]和浓[[乙酸]]中。溶于[[氯化铵]]溶液，微溶于碱金属[[碳酸盐]]溶液。加热灼烧时分解为[[氧化铋]]和[[二氧化碳]]。

在自然界中以[[泡铋矿]]的形式出现。其晶体结构中含有 Bi-O 层和 CO<sub>3</sub> 层。<ref>{{cite journal en
| title =  A Solution to the crystal structures of bismutite and beyerite
| author = Joel D. Grice
| journal =The Canadian Mineralogist
| year = 2002 
| volume =40
| issue =2
| pages = 693–698
| doi =  10.2113/gscanmin.40.2.693
}}</ref>

==制取==
由[[硝酸铋]]溶液与已除去氯离子的[[碳酸钠]]溶液进行[[复分解]]，在[[pH]]为8.5～9.0、温度50～55°C下反应40分钟，生成碱式碳酸铋，再经洗涤、离心分离、烘干、粉碎得到成品。
:<math>\rm \ 4Bi(NO_3)_3+6Na_2CO_3+H_2O\rightarrow \left[ (BiO)_2CO_3\right]_2\cdot H_2O+</math><math>\rm \ 12NaNO_3+4CO_2\uparrow</math>

==用途==
用作[[分析试剂]]、制造其它铋盐的原料、珠光塑料的添加剂、化妆品附着剂、[[搪瓷]][[助熔剂]]。医药上对胃肠粘膜有保护作用，也略能收敛，<ref>{{cite web|url=http://www.chemyq.com/xz/xz13/125007jttrc.htm|title=碱式碳酸铋；碳酸氧铋；次碳酸铋|publisher=化工引擎|accessdate=2009-09-19|archive-date=2010-02-03|archive-url=https://web.archive.org/web/20100203135256/http://www.chemyq.com/xz/xz13/125007jttrc.htm|dead-url=no}}</ref>用于治疗[[胃溃疡|胃]]及[[十二指肠溃疡]]、细菌性[[赤痢]]、急性粘膜渗透性胃炎、肠炎和腹泻等。<ref>{{cite book|title=中国化工产品大全 上卷|pages=85–86|publisher=化学工业出版社|author=化学工业出版社组织编写|isbn=7-5025-1268-3|location=北京|date=1994年7月}}</ref>在X光诊断中用作[[遮光剂]]。<ref>{{Cite web |url=http://www.freepatentsonline.com/5300048.html |title=Flexible, highly radiopaque plastic material catheter - Patent 5300048<!-- Bot generated title --> |accessdate=2009-09-19 |archive-date=2011-05-16 |archive-url=https://web.archive.org/web/20110516153357/http://www.freepatentsonline.com/5300048.html |dead-url=no }}</ref>

[[武汉工程大学]]的陈嵘教授在2006年报道了一种以[[柠檬酸铋]]为模板制备碱式碳酸铋[[纳米管]]的方法。碱式碳酸铋纳米管的潜在医学用途是用作一种治疗[[幽门螺杆菌]]感染的“药物胶囊”。<ref>{{cite journal en
| title =  Fabrication of bismuth subcarbonate nanotube arrays from bismuth citrate
| author = Rong Chen, Man Ho So, Jun Yang, Feng Deng, Chi-Ming Che and Hongzhe Sun
| journal =Chem. Commun.
| year = 2006 
| pages = 2265–2267
| doi =  10.1039/b601764a
}}</ref>

==参考资料==
{{reflist}}

{{铋化合物}}

[[Category:铋化合物]]
[[Category:碳酸盐]]
[[Category:碱式盐]]