Zinc bromide

Zinc ( II) bromide

White, almost odorless solid

Fixed

4.2 g · cm -3 ( 20 ° C)

394 ° C

697 ° C

• Very well in water ( 4470 g · l-1 at 20 ° C)
• Soluble in ethanol and ether

Risk

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Zinc bromide is a chemical compound which is mainly used in the electrolysis, and in the oil industry. It is the bromide of zinc.

Production and representation

Zinc bromide can be obtained by reaction of zinc with bromine.

Other possibilities are the reaction of barium bromide with zinc sulfate ( which also barium sulphate ) or the reaction of hydrogen bromide with zinc:

Chemical Properties

Bromide is a white, almost odorless, highly hygroscopic solid and a Lewis acid. Below 37 ° C crystallized from an aqueous solution of the dihydrate.

Use

Zinc bromide is often used in school experiments in demonstrating the chemical fundamentals of electrolysis or by batteries or accumulators. It continues to be used as an additive in fluxes for soldering and for the production of organic zinc compounds ( zinc organyls ) by electrolysis. In medicine it may be used as a sedative.

The main part of the zinc bromide produced is used in deep-sea oil drilling as part of repression and reaction liquid.

Safety

Zinc bromide is corrosive and corrosive to metals.