 | |
| Identifiers | |
|---|---|
| ECHA InfoCard | 100.033.965 |
| EC Number |
|
| UNII | |
| Properties | |
| ZnMoO4 | |
| Molar mass | 225.33 g/mol |
| Appearance | whitetetragonal crystals |
| Density | 4.32 g/cm3[2] |
| Melting point | 900 °C (1,650 °F; 1,170 K) |
| insoluble | |
| Structure | |
| tetragonal | |
| Hazards | |
| GHS labelling:[3] | |
 | |
| Warning | |
| H315,H319,H335 | |
| NFPA 704 (fire diamond) | |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Zinc molybdate is aninorganic compound with the formulaZnMoO4. It is used as a whitepigment, which is also acorrosion 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]
The LD50 (oral, rats) is 11,500 mg/kg.[4] While highlysolublemolybdates 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.
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