Mercury(I) bromide

Mercury(I) bromide
Names
IUPAC name
Dimercury dibromide
Other names
Mercury(I) bromide
Mercurous bromide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.150.337 Edit this at Wikidata
EC Number
  • 621-489-2
UNII
UN number 1634
  • InChI=1S/2BrH.2Hg/h2*1H;;/q;;2*+1/p-2
    Key: RVARJMCTILSHND-UHFFFAOYSA-L
  • Br[Hg][Hg]Br
Properties
Hg2Br2
Molar mass 560.99 g/mol
Appearance white to yellow tetragonal crystals
Odor odorless
Density 7.307 g/cm3, solid
Melting point 405 °C (761 °F; 678 K)
Boiling point ~ 390 °C (734 °F; 663 K) sublimes[1]
3.9 x 10−5 g/100 mL
6.4×10−23[2]
Solubility insoluble in ether, acetone, alcohol
−28.6·10−6 cm3/mol
Structure
linear
Hazards[3]
GHS labelling:
GHS06: ToxicGHS08: Health hazardGHS09: Environmental hazard
Danger
H300, H310, H330, H373, H410
P260, P262, P264, P270, P271, P273, P280, P284, P301+P310, P302+P350, P304+P340, P310, P314, P320, P321, P322, P330, P361, P363, P391, P403+P233, P405, P501
Flash point non-flammable
Related compounds
Other anions
Mercury(I) fluoride
Mercury(I) chloride
Mercury(I) iodide
Other cations
Zinc bromide
Cadmium bromide
Related compounds
Mercury(II) bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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 a salmon color when exposed to ultraviolet light. It has applications in acousto-optical devices.[4]

A very rare mineral form is called kuzminite and has the chemical formula Hg2(Br,Cl)2.

  1. ^ a b Perry, Dale L.; Phillips, Sidney L. (1995), Handbook of Inorganic Compounds, CRC Press, p. 255, ISBN 0-8493-8671-3, retrieved 2008-05-30
  2. ^ John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99 ed.). CRC Press. pp. 5–188. ISBN 978-1138561632.
  3. ^ "483230 Mercury(I) bromide 99.9+ %". Sigma-Aldrich. Retrieved 2008-05-30.
  4. ^ Macintyre, Jane Elizabeth; Daniel, F. M.; Stirling, V. M. (1992), Dictionary of Inorganic Compounds, vol. 1, CRC Press, p. 314, ISBN 0-412-30120-2, retrieved 2008-05-30