Ammonium cerium(IV) sulfate

Ammonium cerium(IV) sulfate is an inorganic compound with the formula (NH4)4Ce(SO4)4.2 H2O. 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
3D model (JSmol)
ECHA InfoCard 100.206.470 Edit this at Wikidata
Molar mass 632.55 g/mol
Appearance Orange-colored solid
Melting point 130 °C (266 °F; 403 K)
soluble in water
Main hazards Irritant
GHS pictograms GHS07: Harmful
GHS Signal word Warning
H315, H319, H335
P261, P262, P264, P280, P302+352, P305+351+338, P314, P362, P332+313, P337+313[1]
NFPA 704 (fire diamond)
Flammability code 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilHealth code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformReactivity (yellow): no hazard codeSpecial hazard OX: Oxidizer. E.g. potassium perchlorateNFPA 704 four-colored diamond
Related compounds
Related compounds
Cerium(IV) sulfate
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


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.[2]


  1. ^ "Cerium(IV) Ammonium Sulfate Dihydrate". American Elements. 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.