Zinc molybdate

Zinc molybdate[1]
Identifiers
CAS Number
  • 13767-32-3 checkY
ECHA InfoCard 100.033.965 Edit this at Wikidata
EC Number
  • 237-377-8
PubChem CID
  • 16213780
UNII
  • 302KZX2NIS checkY
CompTox Dashboard (EPA)
  • DTXSID10893960 Edit this at Wikidata
Properties
Chemical formula
 ZnMoO4
Molar mass 225.33 g/mol
Appearance white tetragonal crystals
Density 4.32 g/cm3[2]
Melting point 900 °C (1,650 °F; 1,170 K)
Solubility in water
 insoluble
Structure
Crystal structure
 tetragonal
Hazards
GHS labelling:[3]
Pictograms
 GHS07: Exclamation mark
Warning
Hazard statements
 H315, H319, H335
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Chemical compound

Zinc molybdate is an inorganic compound with the formula ZnMoO4. It is used as a white pigment, which is also a corrosion inhibitor. A related pigment is sodium zinc molybdate, Na2Zn(MoO4)2.[4] The material has also been investigated as an electrode material.[5]

In terms of its structure, the Mo(VI) centers are tetrahedral and the Zn(II) centers are octahedral.[2]

Safety

The LD50 (oral, rats) is 11,500 mg/kg.[4] While highly soluble molybdates like e.g. sodium molybdate are toxic in higher doses, zinc molybdate is essentially non-toxic because of its insolubility in water. Molybdates possess a lower toxicity than chromates or lead salts and are therefore seen as an alternative to these salts for corrosion inhibition.

References

  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–95, ISBN 978-0-8493-0594-8
  2. ^ a b Ait Ahsaine, H.; Zbair, M.; Ezahri, M.; Benlhachemi, A.; Arab, M.; Bakiz, B.; Guinneton, F.; Gavarri, J. R. (2015). "Rietveld Refinements, Impedance Spectroscopy and Phase Transition of the Polycrystalline ZnMoO4 Ceramics" (PDF). Ceramics International. 41 (10): 15193–15201. doi:10.1016/j.ceramint.2015.08.094. S2CID 93070036.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  3. ^ "C&L Inventory". echa.europa.eu.
  4. ^ a b G. Etzrodt (2012). "Pigments, Inorganic 5. Anticorrosive Pigments". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.n20_n04. ISBN 978-3527306732.
  5. ^ Hu, Xianluo; Zhang, Wei; Liu, Xiaoxiao; Mei, Yueni; Huang, Yunhui (2015). "Nanostructured Mo-based electrode materials for electrochemical Energy Storage". Chemical Society Reviews. 44 (8): 2376–404. doi:10.1039/C4CS00350K. PMID 25688809. S2CID 205906132.

External links

  • Improved corrosion-inhibiting pigments
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Zinc(I)
Organozinc(I) compounds
  • Zn2(C5(CH3)5)2
Zinc(II)
  • Zn(acac)2
  • Zn(N3)2
  • ZnBr2
  • ZnCO3
  • Zn(CN)2
  • ZnCl2
  • Zn(ClO3)2
  • ZnCrO4
  • ZnF2
  • ZnH2
  • ZnI2
  • ZnMoO4
  • Zn(NO3)2
  • ZnO
  • ZnO2
  • Zn(ClO
    4    )
    2
  • Zn(OH)2
  • ZnS
  • ZnSO4
  • ZnSe
  • ZnTe
  • Zn2P2O7
  • Zn3Sb2
  • Zn3As2
  • Zn3N2
  • Zn3P2
  • ZnP2
  • Zn3(PO4)2
Organozinc(II) compounds
  • Zn(CH3)2
  • Zn(C2H5)2
  • Zn(CH3COO)2
  • Zn(CH(CH3)2)2
  • Zn(C(CH3)3)2
  • Zn(C6H5)2
  • Zn(C3H5O3)2
  • ZnICH2I
    • C
      24      H
      46      ZnO
      4
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    Molybdates
    • (NH4)2MoO4
    • Li2MoO4
    • Na2MoO4
    • MgMoO4
    • K2MoO4
    • CaMoO4
    • MnMoO4
    • FeMoO4
    • ZnMoO4
    • SrMoO4
    • Ag2MoO4
    • BaMoO4
    • PbMoO4
    • Al2(MoO4)3
    • Pr2(MoO4)3
    • Nd2(MoO4)3
    • Sm2(MoO4)3
    Chloromolybdates
    • K2MoCl4
    Dimolybdates
    • (NH4)2Mo2O7
    • Na2Mo2O7
    Related
    • H2MoO4/H2Mo2O7


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