Mercury(I) bromide

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Mercury(I) bromide
Image:Mercury(I) bromide.jpg
IUPAC name Mercury(I) bromide
Other names Mercurous bromide
Identifiers
CAS number [15385-58-7]
RTECS number  ?
Properties
Molecular formula Hg2Br2
Molar mass 560.99 g/mol
Appearance white tetragonal crystals
Density 7.307 g/cm³, solid
Melting point

405°C
Boiling point

sublimes at 340-350°C [1]
Solubility in water 3.9 x 10-5 g/100 mL
Structure
Molecular shape linear
Hazards
EU classification Very toxic (T+)
Dangerous for
the environment (N)
R-phrases R26/27/28, R33, R50/53
S-phrases S13, S28, S45, S60, S61[2]
Flash point non-flammable
Related compounds
Other anions Mercury(I) fluoride
Mercury(I) chloride
Mercury(I) iodide
Other cations Zinc bromide
Cadmium bromide
Mercury(II) bromide
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references

Mercury(I) bromide or mercurous bromide is the chemical compound composed of mercury and bromine with the formula Hg2Br2. It changes color from white to yellow when heated[1] and fluoresces orange when exposed to ultraviolet light. It has applications in acousto-optical devices[3].

[edit] Reactions

Mercury(I) bromide is prepared by the oxidation of elemental mercury with elemental bromine or by adding sodium bromide to a solution of mercury(I) nitrate[1]. It decomposes to mercury(II) bromide and elemental mercury[3].

[edit] References

  1. ^ a b c Perry, Dale L. & Phillips, Sidney L., Handbook of Inorganic Compounds, CRC Press, pp. 255, ISBN 0849386713, <http://books.google.com/books?id=0fT4wfhF1AsC&pg=PA255&dq=%22Mercury(I)+bromide%22&as_brr=3&sig=9IOtdrqpdYj5BIUYqvEI9PxYFek>. Retrieved on 2007-05-30 
  2. ^ 483230 Mercury(I) bromide 99.9+ %. Sigma-Aldrich. Retrieved on 2008-05-30.
  3. ^ a b Macintyre, Jane Elizabeth; Daniel, F. M. & Stirling, V. M., Dictionary of Inorganic Compounds, vol. 1, CRC Press, pp. 314, ISBN 0412301202, <http://books.google.com/books?id=YmBiXJ7qRtAC&pg=PA314&dq=Mercury(I)+bromide&sig=0njDGroae4vdeaiZ_abPpcm8No4>. Retrieved on 2007-05-30 
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