Tin selenide

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Tin selenide
CAS number 1315-06-6 N
Molecular formula SnSe
Molar mass 197.67 g/mol
Appearance steel gray odorless powder
Density 6.179 g/cm3
Melting point 861 °C
Solubility in water insoluble
Band gap between 1 to 2
Crystal structure Halite (cubic), cF8
Space group Fm3m, No. 225
Octahedral (Sn2+)
Octahedral (Se2−)
EU Index 034-002-00-8
EU classification Toxic (T)
Dangerous for the environment (N)
R-phrases R23/25, R33, R50/53
S-phrases (S1/2), S20/21, S28, S45, S60, S61
Related compounds
Other anions Tin(II) oxide
Tin(II) sulfide
Tin telluride
Other cations Carbon monoselenide
Silicon monoselenide
Germanium selenide
Lead selenide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Tin(II) selenide (SnSe) is a chemical compound. It can be formed by reacting the elements (tin and selenium) above 350 ºC.[1] Tin Selenide exhibits low thermal conductivity as well as reasonable electrical conductivity, creating the possibility of it being used in thermoelectric materials.[2]


  1. ^ Greenwood, Norman N.; Earnshaw, Alan (1984). Chemistry of the Elements. Oxford: Pergamon Press. p. 453. ISBN 0-08-022057-6. 
  2. ^ Northwestern University. "Surprising material could play huge role in saving energy: Tin selenide is best at converting waste heat to electricity." ScienceDaily. ScienceDaily, 17 April 2014. <www.sciencedaily.com/releases/2014/04/140417124519.htm>.