查看“︁钼酸”︁的源代码

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{{Chembox
| Name = 钼（Ⅵ）酸（正钼酸）
| NameEn = Molybdic acid
| ImageFile = H2MoO4.png
| ImageSize = 
| IUPACName = Dihydroxy(dioxo)molybdenum
| IUPACNameZh = 
| SystematicName = 二羟基(二氧)钼
| OtherNames = 
| Section1 = {{Chembox Identifiers
| CASNo = 7782-91-4
| CASNo_Ref = {{cascite|changed|??}}
| CASNo1 = 25942-34-1|CASNo1_Comment=二水合物
| CASNo1_Ref = {{cascite|changed|??}}
|    Abbreviations  =  
|    EINECS  =  
|    PubChem  =  82208
|    SMILES  =  O[Mo](=O)(=O)O
|    InChI  =  InChI=1S/Mo.2H2O.2O/h;2*1H2;;/q+2;;;;/p-2
|    RTECS  =  
|    MeSHName  = 
|    ChEBI  = 
|    KEGG  =  
|    ATCCode_prefix  =  
|    ATCCode_suffix  =  
|    ATC_Supplemental  = |  ChemSpiderID  =  74188
|  InChIKey  =  VLAPMBHFAWRUQP-LHLUJLTBAG

}}
| Section2 = {{Chembox Properties
|   Formula = H<sub>2</sub>MoO<sub>4</sub>
|   MolarMass = 163.900716
|   Appearance = 无色三斜或黄色单斜固体<ref name="Holleman-Wiberg">A.F.Holleman, E.Wiberg. ''Lehrbuch der Anorganischen Chemie''. Walter de Gruyter & Co. Berlin 1995, 101. Auflage,  ISBN 3-11-012641-9</ref>
|   Density = 
|   MeltingPt = 300°C
|   Melting_notes = 85 %ig<ref name="Merck">[http://assets.chemportals.merck.de/documents/sds/emd/deu/de/1004/100400.pdf Sicherheitsdatenblatt (Merck), 85 %ig Säure, enthält Ammoniummolybdat]</ref>
|   BoilingPt = 
|   Boiling_notes = 
|   Solubility = 0.5 g·l<sup>−1</sup> (正钼酸，15 °C)<ref>D'Ans-Lax: ''Taschenbuch für Chemiker und Physiker'', 4. Auflage, Band 3, Springer Verlag 1998, ISBN 3-540-60035-3</ref>
|   SolubleOther = 
|   Solvent = 
|   LogP = 
|   VaporPressure = 
|   HenryConstant = 
|   AtmosphericOHRateConstant = 
|   Viscosity = 
|   Viscosity_notes = 
|   pKa = pK<sub>S1</sub>=3.7  pK<sub>S2</sub>=3.9<ref name="Holleman-Wiberg"/>
|   pKb = }}
| Section3 = {{Chembox Structure
|   CrystalStruct = 
|   Coordination = 
|   MolShape = }}
| Section4 = {{Chembox Thermochemistry
|   DeltaHf = 
|   DeltaHc = 
|   Entropy = 
|   HeatCapacity = }}
| Section5 = {{Chembox Pharmacology
|   AdminRoutes = 
|   Bioavail = 
|   Metabolism = 
|   HalfLife = 
|   ProteinBound =
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|   Legal_status = 
|   Legal_US = 
|   Legal_UK = 
|   Legal_AU = 
|   Legal_CA = 
|   PregCat = 
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|   PregCat_US = }}
| Section6 = {{Chembox Explosive
|   ShockSens = 
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|   ExplosiveV = 
|   REFactor = }}
| Section7 = {{Chembox Hazards
|   EUClass = 
|   EUIndex = 
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|   EUHazardSymbol = {{Chembox EUHazardSymbol|Xn}}
|   NFPA-H = 
|   NFPA-F = 
|   NFPA-R = 
|   NFPA-O = 
|   RPhrases = {{R36/37}},{{R48/20/22}}
|   SPhrases = {{S22}},{{S25}}
|   RSPhrases = 
|   FlashPt = 
|   Autoignition = 
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|   PEL = }}
| Section8 = {{Chembox Related
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}}

'''钼酸'''是[[三氧化钼]]與水生成的化合物，化学式H<sub>2</sub>MoO<sub>4</sub>。

==性质==
钼酸为黄色[[单斜]]结晶体或粉末，工业品通常含有少量[[钼酸铵]]。

==制法==
[[钼酸铵]]溶液和[[硝酸]]发生化学反应，析出钼酸沉淀物，通过洗涤、离心、干燥和粉碎后制成。
:<math>\rm \ (NH_4)_2MoO_4+2HNO_3+H_2O\rightarrow H_2MoO_4\cdot H_2O+2NH_4NO_3</math>

==参考资料==
{{reflist}}

{{氢化合物}}
{{钼化合物}}
[[Category:钼化合物]]
[[Category:钼酸盐|*]]
[[Category:无机酸]]
[[Category:缺少物质图片的化学品条目]]