查看“︁氟化钐”︁的源代码

{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 476999201
| ImageFile = Kristallstruktur Yttrium(III)-fluorid.png
| ImageSize = 
| IUPACName = Samarium(III) fluoride
| OtherNames = 三氟化钐<BR>氟化钐(III)
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 75536
| InChI = 1/3FH.Sm/h3*1H;/q;;;+3/p-3
| InChIKey = OJIKOZJGHCVMDC-DFZHHIFOAV
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/3FH.Sm/h3*1H;/q;;;+3/p-3
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = OJIKOZJGHCVMDC-UHFFFAOYSA-K
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 13765-24-7
| EINECS = 237-367-3
| PubChem = 83714
| SMILES = F[Sm](F)F
  }}
|Section2={{Chembox Properties
| Formula = SmF<sub>3</sub>
| MolarMass = 207.36 g/mol
| Appearance = 黄色粉末
| Density = 6.6 g/cm<sup>3</sup>（20 °C）
| MeltingPtC = 1306
| BoilingPtC = 2427
| Solubility = 难溶
}}
|Section3={{Chembox Structure
| CrystalStruct = [[正交晶系]]，[[Pearson符号|oP16]]
| SpaceGroup = Pnma, No. 62
}}
|Section7={{Chembox Hazards
| MainHazards = 
| RPhrases = {{R20/21/22}}, {{R36/37/38}}
| SPhrases = {{S9}}, {{S26}}, {{S36/37}}
| FlashPt = 
| AutoignitionPt = 
  }}
|Section4={{Chembox Related
| OtherCpds = [[氟化亚钐]]
  }}
}}

'''氟化钐'''是一种[[无机化合物]]，化学式为SmF<sub>3</sub>。

==制备==
氟化钐可由SmCl<sub>3</sub>或Sm<sub>2</sub>(CO<sub>3</sub>)<sub>3</sub>和40%氢氟酸反应得到：<ref>王亚军, 刘前, 索全伶, 等. 稀土氟化物的沉淀方法及组成研究[J]. 稀土, 2000, 21(1):14-18.</ref>

: SmCl<sub>3</sub> + 3 HF → SmF<sub>3</sub>↓ + 3 HCl
: Sm<sub>2</sub>(CO<sub>3</sub>)<sub>3</sub> + 6 HF → 2 SmF<sub>3</sub> + 3 H<sub>2</sub>O + 3 CO<sub>2</sub>↑

[[硝酸钐]]和[[氟硼酸钠]]在200 °C进行水热反应，也能制得SmF<sub>3</sub>。<ref>孙元平, 贾佩云, 王芳, 等. 水热条件下稀土氟化物形貌的规律性生长[J]. 中国陶瓷, 2013(6).</ref>

==化学性质==
氟化钐在高温下和一些还原剂反应，可以得到[[二氟化钐]]：<ref>{{книга
 | автор         = G. Meyer, Lester R. Morss
 | заглавие      = Synthesis of Lanthanide and Actinide Compounds
 | ссылка        = https://books.google.com.ua/books?id=z0jvCAAAQBAJ&pg=PA56&lpg=PA56&dq=%22SmF3%22+Samarium&source=bl&ots=WHlYoxNTix&sig=ybloDSLg1O4tv4FxJ_lfR-i72jc&hl=ru&sa=X&ved=0ahUKEwiwu4DXr-jJAhUl_HIKHToQDNMQ6AEIJzAC#v=onepage&q=%22SmF3%22%20Samarium&f=false
 | ответственный = 
 | место         = 
 | издательство  = Springer Science & Business Media
 | год           = 2012
 | том           = 
 | страниц       = 368
 | страницы      = 56
 | isbn          = 9789401137584
 | ref           = 
}}</ref>
: <math>\mathsf{ 4 SmF_3 + C \ \xrightarrow{2000^oC}\ 4 SmF_2 + CF_4 }</math>
: <math>\mathsf{ 2 SmF_3 + Sm \ \xrightarrow{1800^oC}\ 3 SmF_2 }</math>

==参考文献==
{{reflist}}

{{钐化合物}}
{{氟化物}}

[[Category:钐化合物]]
[[Category:氟化物]]
[[Category:镧系金属卤化物]]