Strontium selenide

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Strontium selenide
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Identifiers
3D model (JSmol)
ChemSpider
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EC Number
  • 215-258-1
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  • InChI=1S/Se.Sr/q-2;+2
    Key: BCTHFFLRHBNYHU-UHFFFAOYSA-N
  • [Se-2].[Sr+2]
Properties
SrSe
Molar mass 166.58
Appearance White powder, turns reddish brown when exposed to air[1]
Density 4.5
Hazards
GHS labelling:[1]
GHS06: ToxicGHS08: Health hazardGHS09: Environmental hazard
Danger
H301, H331, H373, H410
P260, P261, P264, P270, P271, P273, P301+P316, P304+P340, P316, P319, P321, P330, P391, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Strontium selenide is an inorganic compound with the chemical formula SrSe.

Preparation

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Strontium selenide can be prepared by reducing strontium selenate with hydrogen at 600 °C.[2] It can also be produced by reacting strontium and hydrogen selenide in liquid ammonia.[3]

Properties

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Strontium selenide crystallizes in the orthorhombic crystal system with space group Fm3m. It has a NaCl structure.[4][5] It transforms into a CsCl structure with a space group Pm3m under high pressure (14 GPa).[6]

It reacts with mercury selenide and germanium diselenide at high temperature to obtain the SrHgGeSe4 crystal.[7] It reacts with thorium and selenium at high temperature in the presence of tin to obtain SrTh2Se5.[8]

References

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