钼酸锌是一种无机化合物，化学式为ZnMoO₄。

白色四方晶系粉末。能释放出钼酸根离子在钢铁表面形成复合的不溶物，有防锈蚀作用。

Zinc molybdate (ZnMoO₄) is an inorganic material found in nature with two different types of crystalline phases: α-triclinic and β-monoclinic. In the α-ZnMoO₄ triclinic structure, all zinc (Zn) atoms are bonded to six oxygen (O) atoms, forming the distorted octahedral [ZnO₆] clusters. The molybdenum (Mo) atoms are coordinated to four O atoms, resulting in the tetrahedral [MoO₄] clusters [1,2]. On the other hand, the β-ZnMoO₄ monoclinic structure has both Zn and Mo atoms bonded to six O atoms, which promote the origin of distorted octahedral [ZnO₆]/[MoO₆] clusters, respectively [3]. Moreover, ZnMoO₄ is an inorganic chemical compound. It is white to light-gray in color, which can be used as a corrosion inhibitor in paints and adhesives. While highly soluble molybdates (e.g. sodium molybdate) are toxic in high 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 interesting alternative to these salts for corrosion inhibition. One of the most common methods used to synthesize zinc molybdate is by mixing aqueous solutions of sodium molybdate and zinc chloride: the insoluble zinc molybdate will crystallize from this mixture. A less common procedure used is blending solid molybdenum trioxide powder with zinc oxide powder and then heating the mixture to above 600 °C.