Zinc nitrate

• 7779-88-6 (anhydrous)
• 19154-63-3 (tetrahydrate )
• 10196-18-6 (hexahydrate )

Colorless, crystalline solid

Fixed

2.065 g · cm -3 (hexahydrate, 14 ° C)

• 36 ° C ( hexahydrate)
• 45 ° C ( tetrahydrate)

Very slightly soluble in water (1843 g · l-1 hexahydrate at 20 ° C)

Risk

1190 mg · kg -1 ( LD50, rat, oral)

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Zinc nitrate [ Zn ( NO3 ) 2] is the zinc salt of nitric acid.

Production and representation

Hydrated zinc nitrate resulting from the reaction of zinc with nitric acid.

In contrast, anhydrous zinc nitrate can not win this way. Instead, it is possible to obtain this by the reaction of dinitrogen tetroxide and zinc.

Properties

Zinc nitrate is a colorless oxidising solid. It decomposes when heated, with nitrous oxide and zinc oxide created and is discharged before above 105 ° C water of crystallization.

Of zinc nitrate salts with several different amounts of water of crystallization are known. The best known are six equivalents of water (hexahydrate ), but are also known hydrates with two, four or nine water molecules.

Use

Zinc nitrate is used as a catalyst in the crease resist finishing of textile products as a component of latex Koagulierungsbädern, in electroplating and Acetatfaserfärbung.

It is used as a bleaching and pickling agents, as well as the isolation of other zinc compounds.