Zinc nitrate

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Template:Chembox Zinc nitrate is an inorganic chemical compound with the formula Template:Chem2. This colorless, crystalline salt is highly deliquescent. It is typically encountered as a hexahydrate Template:Chem2. It is soluble in both water and alcohol.

Synthesis

Zinc nitrate is usually prepared by dissolving zinc metal, zinc oxide, or related materials in nitric acid:

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These reactions are accompanied by the hydration of the zinc nitrate.

The anhydrous salt arises by the reaction of anhydrous zinc chloride with nitrogen dioxide:[1]

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Reactions

Treatment of zinc nitrate with acetic anhydride gives zinc acetate.[2]

On heating, zinc nitrate undergoes thermal decomposition to form zinc oxide, nitrogen dioxide and oxygen:

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Aqueous zinc nitrate contains aquo complexes Template:Chem2.[3] and, thus, this reaction may be better written as the reaction of the aquated ion with hydroxide through donation of a proton, as follows.

Applications

Zinc nitrate has no large scale application but is used on a laboratory scale for the synthesis of coordination polymers.[4] Its controlled decomposition to zinc oxide has also been used for the generation of various ZnO based structures, including nanowires.[5]

It is used as a corrosion inhibitor. [6]


It can be used as a mordant in dyeing. An example reaction gives a precipitate of zinc carbonate:

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References

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  3. Sze, Yu-Keung, and Donald E. Irish. "Vibrational spectral studies of ion-ion and ion-solvent interactions. I. Zinc nitrate in water." Journal of Solution Chemistry 7.6 (1978): 395-415.
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Template:Zinc compounds Template:Salts by element