Zinc nitrate is an inorganic chemical compound with the formula Zn(NO3)2. This colorless, crystalline salt is highly deliquescent. It is typically encountered as a hexahydrate Zn(NO3)2·6H2O. It is soluble in both water and alcohol.
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IUPAC name
Zinc nitrate
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Other names
Zinc dinitrate
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Identifiers | |
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ECHA InfoCard | 100.029.038 |
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UN number | 1514 |
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Properties | |
Zn(NO3)2 | |
Molar mass | 189.36 g/mol (anhydrous) 297.49 g/mol (hexahydrate) |
Appearance | colorless, deliquescent crystals |
Density | 2.065 g/cm3 (hexahydrate) |
Melting point | 110 °C (230 °F; 383 K) (anhydrous) 45.5 °C (trihydrate) 36.4 °C (hexahydrate) |
Boiling point | ~ 125 °C (257 °F; 398 K) decomposes (hexahydrate) |
327 g/(100 mL), 40 °C (trihydrate) 184.3 g/(100 mL), 20 °C (hexahydrate) | |
Solubility | very soluble in alcohol |
−63.0·10−6 cm3/mol | |
Hazards | |
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Main hazards
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Oxidant, may explode on heating |
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Flash point | Non-flammable |
Safety data sheet (SDS) | ICSC 1206 |
Related compounds | |
Other anions
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Zinc sulfate Zinc chloride |
Other cations
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Cadmium nitrate Mercury(II) nitrate |
Related compounds
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Copper(II) nitrate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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Zinc nitrate is usually prepared by dissolving zinc metal, zinc oxide, or related materials in nitric acid:
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]
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:
Zinc nitrate has no large scale application but is used on a laboratory scale for the synthesis of coordination polymers.[3] Its controlled decomposition to zinc oxide has also been used for the generation of various ZnO based structures, including nanowires.[4]
It can be used as a mordant in dyeing. An example reaction gives a precipitate of zinc carbonate: