Europium(II) sulfide
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Europium(II) sulfide is the inorganic compound with the chemical formula EuS. It is a black, air-stable powder. Europium possesses an oxidation state of +II in europium sulfide, whereas the lanthanides exhibit a typical oxidation state of +III.[1] Its Curie temperature (Tc) is 16.6 K. Below this temperature EuS behaves like a ferromagnetic compound, and above it exhibits simple paramagnetic properties.[2] EuS is stable up to 500 °C in air, when it begins to show signs of oxidation. In an inert environment it decomposes at 1470 °C.[3]
Quick Facts Names, Identifiers ...
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IUPAC name
europium(II) sulfide | |
Identifiers | |
3D model (JSmol) |
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ECHA InfoCard | 100.031.498 |
PubChem CID |
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CompTox Dashboard (EPA) |
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Properties | |
EuS | |
Molar mass | 184.03 g/mol |
Appearance | black powder |
Melting point | 2,250 °C (4,080 °F; 2,520 K) |
+25,730;·10−6 cm3/mol | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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