查看“︁硝酸钴”︁的源代码

{{chembox
|   Reference = <ref name="BGIA GESTIS">{{GESTIS|Name=Cobalt(II)-nitrat |ZVG=5340 |CAS= |Datum=15.4.2008 }}</ref>
|   Name = 硝酸钴(II)
|   ImageFile = Cobalt(II)-nitrate-hexahydrate-sample.jpg
|   ImageName = 六水合硝酸钴(II)晶体
|   OtherNames = 硝酸钴<br/>硝酸亚钴
| Section1 = {{Chembox Identifiers
| CASNo = 10141-05-6
| CASNo_Ref = {{cascite|correct|CAS}}
|    ChemSpiderID  =  23369
|    InChI  =  1/Co.2NO3/c;2*2-1(3)4/q+2;2*-1
|    SMILES  =  [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O
|    InChIKey  =  UFMZWBIQTDUYBN-UHFFFAOYAS
|    CASOther  =  10026-22-9 (六水合物)
|    PubChem  =  25000
|    EINECS  =  233-402-1
|    RTECS  =  GG1109000
|  ChemSpiderID_Ref  = {{chemspidercite|correct|chemspider}}|  UNII_Ref  = {{fdacite|correct|FDA}}|  UNII  =   65W79BFD5V
|  StdInChI_Ref  = {{stdinchicite|correct|chemspider}}|  StdInChI  =  1S/Co.2NO3/c;2*2-1(3)4/q+2;2*-1
|  StdInChIKey_Ref  = {{stdinchicite|correct|chemspider}}|  StdInChIKey  =  UFMZWBIQTDUYBN-UHFFFAOYSA-N
|  ChEBI_Ref  = {{ebicite|changed|EBI}}|  ChEBI  =  86209
}}
| Section2 = {{Chembox Properties
|   Formula = Co(NO<sub>3</sub>)<sub>2</sub>
|   MolarMass1 = 182.943 g/mol (无水物) <br /> 291.03 g/mol (六水合物)
|   Appearance = 浅红色粉末 (无水物) <br> 红色结晶 (六水合物)
|   Density = 2.49 g/cm<sup>3</sup> (无水物) <br /> 1.87 g/cm<sup>3</sup> (六水合物)
|   Solubility = 134 g/100 ml, 0 °C (六水合物) <br /> 可溶 (无水物)
|   SolOther = 溶于[[乙醇]]、[[丙酮]] (六水合物)
|   MeltingPt = 100 °C 分解 (无水物) <br /> 55 °C (六水合物)
|   BoilingPt = 100–105 °C 分解 (六水合物)
  }}
| Section3 = {{Chembox Structure
|   MolShape = 
|   Coordination = 单斜 (六水合物)
|   CrystalStruct = 
|   Dipole =
  }}
| Section7 = {{Chembox Hazards
|   ExternalMSDS = [http://www.jtbaker.com/msds/englishhtml/c4939.htm Cobalt (II) Nitrate MSDS]
|   EUIndex = 027-009-00-2
|   EUClass = [[致癌物質|二类致癌物]]<br />[[突變原|三类诱变剂]]<br />二类生殖毒性<br />有毒 ('''T''')<br />对环境危险 ('''N''')
|   RPhrases = {{R49}}, {{R60}}, {{R42/43}}, {{R68}}, {{R50/53}}
|   Sphrases = {{S53}}, {{S45}}, {{S60}}, {{S61}}
|   NFPA-H = 2
|   NFPA-F = 0
|   NFPA-R = 0
|   NFPA-O = OX
  }}
| Section8 = {{Chembox Related
|   OtherAnions = [[硫酸钴]]<br/>[[氯化钴]]
|   OtherCations = [[硝酸铁]]<br/>[[硝酸镍]]<br />[[硝酸高钴]]
|   OtherCpds = 
  }}
}}

'''硝酸钴'''，化学式Co(NO<sub>3</sub>)<sub>2</sub>。

==性质==
硝酸钴是一种红色[[单斜]]柱状结晶，在潮湿空气中易[[潮解]]，易溶于水、[[乙醇]]、[[丙酮]]和[[乙酸甲酯]]，微溶于[[氨水]]，水溶液呈红色。55°C失去3个结晶水，再加热则失去1个结晶水，继续加热则分解为[[氧化钴]]。与有机物接触能爆炸和燃烧。<ref name="zghg">中国化工产品大全 上卷，Bc217 硝酸钴，页205</ref>

==制备==
由30～32％[[硝酸]]与金属[[钴]]进行反应，再经趁热过滤、滤液酸化、蒸发浓缩、冷却结晶、离心分离得到硝酸钴成品。<ref name="zghg" />
:<math>\rm \ 3Co+8HNO_3\rightarrow 3Co(NO_3)_2+4H_2O+2NO\uparrow</math>
钴的氧化物、氢氧化物、碳酸盐和硝酸反应，也能得到硝酸钴。

==用途==
用于制造石油化工中直接脱硫的催化剂、隐显墨水、钴颜料、[[六亚硝酸钴钠]]，用作[[氰化物]]中毒的解毒剂，此外也用作陶瓷工业中的着色剂、制造[[维生素B12]]的添加剂等。<ref name="zghg" /><ref>[{{Cite web |url=http://www.guidechem.com/dictionary/10141-05-6.html |title=硝酸钴字典-Guidechem.com{{en}} |accessdate=2012-01-05 |archive-date=2016-03-05 |archive-url=https://web.archive.org/web/20160305075318/http://www.guidechem.com/dictionary/10141-05-6.html |dead-url=no }} 硝酸钴字典-Guidechem.com{{en}}]</ref>

==参考资料==
{{reflist}}

{{鈷化合物}}
{{硝酸盐}}

[[Category:二价钴化合物]]
[[Category:硝酸盐]]
[[Category:潮解物质]]