Europium (II) sulfate
Crystal structure | |||||||||||||
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__ Eu 2+ __ S 6+ __ O 2− | |||||||||||||
General | |||||||||||||
Surname | Europium (II) sulfate | ||||||||||||
Ratio formula | EuSO 4 | ||||||||||||
Brief description |
white solid |
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External identifiers / databases | |||||||||||||
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properties | |||||||||||||
Molar mass | 248.028 g mol −1 | ||||||||||||
Physical state |
firmly |
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density |
4.98 g cm −3 |
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safety instructions | |||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Europium (II) sulfate is a chemical compound of europium from the group of sulfates .
Extraction and presentation
Europium (II) sulfate can be obtained by reducing europium (III) chloride dissolved in hydrochloric acid with zinc and sulfuric acid.
properties
Europium (II) sulphate is a white solid, hardly sensitive to air, which, like strontium sulphate, is very slightly soluble in water. Oxidation only occurs months after storage in air. Its crystal structure is isotypic to that of strontium sulfate and barium sulfate and is orthorhombic with the space group Pnma (space group no. 62) . The connection comes in two modifications.
Individual evidence
- ↑ a b c d e Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 1097.
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ^ I. Mayer, E. Levy, A. Glasner: The crystal structure of EuSO4 and EuCO3. In: Acta Crystallographica. 17, 1964, pp. 1071-1072, doi : 10.1107 / S0365110X64002699 .
- ↑ Jane E. Macintyre: Dictionary of Inorganic Compounds . CRC Press, 1992, ISBN 0-412-30120-2 , pp. 3124 ( limited preview in Google Book search).