Europium (II) sulfate

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Crystal structure
Crystal structure of europium (II) sulfate
__ Eu 2+      __ S 6+      __ O 2−
General
Surname Europium (II) sulfate
Ratio formula EuSO 4
Brief description

white solid

External identifiers / databases
CAS number 10031-54-6
EC number 233-091-2
ECHA InfoCard 100.030.071
Wikidata Q1377105
properties
Molar mass 248.028 g mol −1
Physical state

firmly

density

4.98 g cm −3

safety instructions
GHS hazard labeling
no classification available
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. Template: room group / 62

Individual evidence

  1. 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.
  2. This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  3. ^ 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 .
  4. Jane E. Macintyre: Dictionary of Inorganic Compounds . CRC Press, 1992, ISBN 0-412-30120-2 , pp. 3124 ( limited preview in Google Book search).