From Wikipedia, the free encyclopedia
Zinc molybdate [1]
Identifiers
ECHA InfoCard 100.033.965 Edit this at Wikidata
EC Number
  • 237-377-8
PubChem CID
UNII
Properties
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)
insoluble
Structure
tetragonal
Hazards
GHS labelling: [3]
GHS07: Exclamation mark
Warning
H315, H319, H335
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 0: Will not burn. E.g. water Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special 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).
checkY  verify ( what is checkY☒N ?)

Zinc molybdate is an inorganic compound with the formula Zn MoO4. 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


From Wikipedia, the free encyclopedia
Zinc molybdate [1]
Identifiers
ECHA InfoCard 100.033.965 Edit this at Wikidata
EC Number
  • 237-377-8
PubChem CID
UNII
Properties
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)
insoluble
Structure
tetragonal
Hazards
GHS labelling: [3]
GHS07: Exclamation mark
Warning
H315, H319, H335
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 0: Will not burn. E.g. water Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special 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).
checkY  verify ( what is checkY☒N ?)

Zinc molybdate is an inorganic compound with the formula Zn MoO4. 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



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