Strontium selenide
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| 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).
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Strontium selenide is an inorganic compound with the chemical formula SrSe.
Preparation
[edit | edit source]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
[edit | edit source]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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