Zinc molybdate explained

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. The material has also been investigated as an electrode material.[1]

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. 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.

External links

Notes and References

  1. Nanostructured Mo-based electrode materials for electrochemical Energy Storage. Hu. Xianluo. Zhang. Wei. Liu. Xiaoxiao. Mei. Yueni. Huang. Yunhui. Chemical Society Reviews. 2015. 44. 8. 2376–404. 10.1039/C4CS00350K. 25688809. 205906132.
  2. Rietveld Refinements, Impedance Spectroscopy and Phase Transition of the Polycrystalline ZnMoO4 Ceramics. Ait Ahsaine, H.; Zbair, M.; Ezahri, M.; Benlhachemi, A.; Arab, M.; Bakiz, B.; Guinneton, F.; Gavarri, J. R.. Ceramics International. 2015. 41. 10. 15193–15201. 10.1016/j.ceramint.2015.08.094. 93070036 .