Mercury selenide

Mercury(II) selenide
Mercury(II) selenide unit cell
Names
IUPAC name
Mercury selenide
Identifiers
3D model (JSmol)
ECHA InfoCard 100.039.903 Edit this at Wikidata
EC Number
  • 243-910-5
  • InChI=1S/Hg.Se
    Key: YQMLDSWXEQOSPP-UHFFFAOYSA-N
  • InChI=1S/Hg.Se
  • [Se]=[Hg]
Properties
HgSe
Molar mass 279.55 g/mol
Appearance grey-black solid
Odor odorless
Density 8.266 g/cm3
Melting point 1,000 °C; 1,830 °F; 1,270 K
insoluble
Structure
sphalerite
Thermochemistry
178 J kg−1 K−1
247 kJ/mol
Hazards
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
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
3
0
1
Flash point Non-flammable
Related compounds
Other anions
 Mercury oxide
Mercury sulfide
Mercury telluride
Other cations
 Zinc selenide
Cadmium selenide
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 selenide (HgSe; sometimes mercury(II) selenide) is a chemical compound of mercury and selenium. It is a grey-black crystalline solid semi-metal with a sphalerite structure. The lattice constant is 0.608 nm.

HgSe occurs naturally as the mineral Tiemannite, and is a component of the "intimate mixture" of HgSe and Se known as HgSe2.[1]

Along with other II-VI compounds, colloidal nanocrystals of HgSe can be formed.

  1. ^ Park, Chang-Woo; Smith, Donna M.; Pell, Michael A.; Ibers, James A. (1997). "Different Products from the Chemical and Electrochemical Reduction of 'HgSe2': [K(2.2.2-cryptand)]2[HgSe2] and [PPh4]2[Hg(Se4)2]·en". Inorg. Chem. 36 (5): 942–943. doi:10.1021/ic960786v.