Zinc nitrate
Structural formula | |||||||||||||||||||
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Zn 2+ 2 | |||||||||||||||||||
General | |||||||||||||||||||
Surname | Zinc nitrate | ||||||||||||||||||
Molecular formula | Zn (NO 3 ) 2 | ||||||||||||||||||
Brief description |
colorless, crystalline solid |
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External identifiers / databases | |||||||||||||||||||
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properties | |||||||||||||||||||
Molar mass | 189.39 g mol −1 | ||||||||||||||||||
Physical state |
firmly |
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density |
2.065 g cm −3 (hexahydrate, 20 ° C) |
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Melting point |
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solubility |
very light in water (1843 g l −1 at 20 ° C, hexahydrate) |
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safety instructions | |||||||||||||||||||
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Toxicological data | |||||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Zinc nitrate [Zn (NO 3 ) 2 ] is the zinc salt of nitric acid .
Extraction and presentation
Zinc nitrate containing water is formed when zinc reacts with nitric acid.
On the other hand, anhydrous zinc nitrate cannot be obtained in this way. Instead, it is possible to obtain this by reacting nitrous tetroxide and zinc.
properties
Zinc nitrate is a colorless, oxidizing solid. It decomposes when heated, producing nitrogen oxides and zinc oxide and before that water of crystallization is given off above 105 ° C.
Several salts with different amounts of water of crystallization are known of zinc nitrate . The best known contains six equivalents of water (hexahydrate), but hydrates with two, four or nine water molecules are also known.
use
Zinc nitrate is used as a catalyst in the crease-proofing of textile goods, as a component of latex coagulation baths, in electroplating and in acetate fiber dyeing.
It is used as a bleaching and pickling agent , as well as for the extraction of other zinc compounds.
Individual evidence
- ↑ a b c d e f g h i Entry on zinc nitrate in the GESTIS substance database of the IFA , accessed on February 17, 2017(JavaScript required) .
- ↑ a b H. Schmit, C. Rathgeber, P. Hennemann, S. Hiebler: Three-step method to determine the eutectic composition of binary and ternary mixtures - Tested on two novel eutectic phase change materials based on salt hydrates. In: J. Therm. Anal. Calorim. 117, 2014, pp. 595-602.
- ↑ applichem: zinc nitrate hexahydrate