Ammonium cerium(IV) sulfate

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Ammonium cerium(IV) sulfate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.206.470 Edit this at Wikidata
  • 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
  • .S(=O)(=O).S()(=O)=O.S()(=O)=O.S()(=O)=O.O.O....
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 diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability (yellow): no hazard codeSpecial hazard OX: Oxidizer. E.g. potassium perchlorate
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 , 100 kPa).
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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.

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)8·4H2O.[2]

Structure of the 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•4H2O". Acta Crystallographica Section C. 54 (12): 1744–1745. Bibcode:1998AcCrC..54.1744S. doi:10.1107/S0108270198007057. ISSN 0108-2701. PMID 9921692.