Ammonium cerium(IV) sulfate

Ammonium cerium(IV) sulfate is an inorganic compound with the formula (NH4)4Ce(SO4)4·2H2O. It is an orange-colored solid. It is a strong oxidant, the potential for reduction is about +1.44V. Cerium(IV) sulfate is a related compound.

Ammonium cerium(IV) sulfate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.206.470
  • InChI=1S/Ce.4H3N.4H2O4S.2H2O/c;;;;;4*1-5(2,3)4;;/h;4*1H3;4*(H2,1,2,3,4);2*1H2/q+4;;;;;;;;;;/p-4
    Key: VCNAMBGKEDPVGQ-UHFFFAOYSA-J
  • [Ce+4].[O-]S(=O)(=O)[O-].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.O.O.[NH4+].[NH4+].[NH4+].[NH4+]
Properties
H20N4S4O18Ce
Molar mass 632.55 g/mol
Appearance Orange-colored solid
Melting point 130 °C (266 °F; 403 K)
soluble in water
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritant
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P262, P264, P280, P302+P352, P305+P351+P338, P314, P332+P313, P337+P313, P362[1]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond
2
1
OX
Related compounds
Related compounds
 Cerium(IV) sulfate, Ceric ammonium nitrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Structure

A crystallographic study shows that the compound contains the Ce2(SO4)88− anion, where the cerium atoms are 9 coordinated by oxygen atoms belonging to sulfate groups, in a distorted tricapped trigonal prism. The compound is thus sometimes formulated as (NH4)8[Ce2(SO4)8]·4H2O.[2]

Structure of the [Ce2(SO4)8]8− ion in the crystal structure of ammonium cerium(IV) sulfate dihydrate

References
  1. "Cerium(IV) Ammonium Sulfate Dihydrate". American Elements. Archived from the original on September 14, 2018. Retrieved September 13, 2018.
  2. Shan, Y.; Huang, S. D. (1998). "(NH4)8[Ce2(SO4)8]•4H2O". Acta Crystallographica Section C. 54 (12): 1744–1745. doi:10.1107/S0108270198007057. ISSN 0108-2701. PMID 9921692.
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