Dysprosium(III) sulfate

Chemical compound From Wikipedia, the free encyclopedia

Dysprosium(III) sulfate is an inorganic compound with the chemical formula Dy2(SO4)3. A yellow octahydrate exists, forming monoclinic crystals.

Quick facts Names, Identifiers ...
Dysprosium(III) sulfate
Octahydrate
Names
Other names
  • Didysprosium trisulphate
  • Dysprosium trisulphate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • anhydrous: 238-345-6
  • anhydrous: InChI=1S/2Dy.3H2O4S/c;;3*1-5(2,3)4/h;;3*(H2,1,2,3,4)/q2*+3;;;/p-6
    Key: FLWXWKDFOLALOB-UHFFFAOYSA-H
  • octahydrate: InChI=1S/2Dy.3H2O4S.8H2O/c;;3*1-5(2,3)4;;;;;;;;/h;;3*(H2,1,2,3,4);8*1H2/q2*+3;;;;;;;;;;;/p-6
    Key: NCCPVLRLAAMOQH-UHFFFAOYSA-H
  • anhydrous: [O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Dy+3].[Dy+3]
  • octahydrate: O.O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Dy+3].[Dy+3]
Properties[1]
Dy2(SO4)3
Molar mass 613.17 g·mol−1
Appearance yellow solid
soluble
Structure[2]
monoclinic (octahydrate)
C2/c (No. 15)
a = 13.469 Å, b = 6.695 Å, c = 18.202 Å
α = 90°, β = 102.06°, γ = 90°
1605.1 Å3
4 units per cell
Hazards
GHS labelling:[3]
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, 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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Preparation

The octahydrate can be prepared by dissolving dysprosium oxide in sulfuric acid.[1] The anhydrous form is obtained by heating to 360 °C.[1]

Reactions

A dysprosium oxysulfide (Dy2O2S) phosphor is obtained by calcination of the hydrate under a reductive CO atmosphere at 1,153 K (880 °C; 1,616 °F).[4] If an air atmosphere is used instead, a dysprosium oxysulfate (Dy2O2SO4) forms at 1,313 K (1,040 °C; 1,904 °F).

Related compounds

A dysprosium sulfate-based coordination polymer, [((CH3)2NH2)9Dy5(SO4)12]n, has been characterized by single-crystal X-ray diffraction.[5] It is of research interest as a proton-conducting material.

A hydroxysulfate (Dy4(OH)4(SO4)4(H2O)3)[6] and ethylsulfate (Dy(C2H5SO4)3·9H2O)[7] have also been characterized.

References

Further reading

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