Bromine water

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Crude bromine water

Bromine water is a highly oxidizing intense yellow mixture containing diatomic bromine Br2 at 2.8% dissolved in water.

Properties

Chemical

Bromine water is often used as a reactive in chemical assays of recognition for substances which react with bromine in an aqueous environment with the halogenation mechanism, such as alkenes, phenols, enols, acetyl groups, aniline and glucose.

Physical

Bromine water is a yellow solution, with a strong, unpleasant and hazardous smell.

Preparation

Bromine water can be produced by carefully dissolving elemental bromine in water. It can also be produced by mixing a bromide salt with an oxidizer and an acid, such as sodium bromide with bleach and hydrochloric acid.[1]

Projects

  • Alkene detection

Handling

Safety

Bromine water is corrosive to metals and tissues, especially in case of skin, eye, nose.

Storage

Bromine water will convert to hydrobromic acid, and should be stored in closed glass bottles, with a corrosion resistant lid.

Disposal

Bromine water can be neutralized with sodium bisulfite or sodium thiosulfate solutions.

References

  1. https://www.youtube.com/watch?v=kQ7HvpEwtck

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