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Bromine Synthesis and Halogen Reactions

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Uploaded on Jun 13, 2010

In this video, the synthesis of bromine, one of the two liquid elements at room temperature, is described. Our yield of bromine in then reacted with aluminum to form a cloud of bromine vapor and a small amount of aluminum bromide. An analogous reaction is demonstrated with powdered aluminum and powdered iodine.

The reactions in this video are:
2*NaBr (aq) + NaClO (aq) + 2*HCl (aq) → Br2 (g) + 3*NaCl (aq) + H2O (l)
3*Br2 (l) + 4*Al (s) → 2*Al2Br3 (s)
4*Al (s) + 3*I2 (s) → 2*Al2I3 (s)

Table of contents:
Preparation of bromine: 00:21
Formation of aluminum bromide: 02:07
Formation of aluminum iodide: 03:40
Please pay close attention to the warnings presented in the video- this reaction is far too messy to perform even in a fumehood, so we would only recommend this be done outdoors. Eye protection and gloves must be worn at all times.

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