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22269

Sigma-Aldrich

Ammonium cerium(IV) sulfate dihydrate

puriss. p.a., ACS reagent, ≥98.0% (RT)

Synonym(s):

Ceric ammonium sulfate, Cerium(IV) ammonium sulfate

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About This Item

Linear Formula:
Ce(NH4)4(SO4)4 · 2H2O
CAS Number:
Molecular Weight:
632.55
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NB.03

grade

ACS reagent
puriss. p.a.

Assay

≥98.0% (RT)

form

powder or crystals

reaction suitability

reagent type: catalyst
core: cerium

mp

130 °C (lit.)

anion traces

phosphate (PO43-): ≤300 mg/kg

cation traces

Fe: ≤100 mg/kg

SMILES string

N.N.N.N.O.O.[Ce+4].OS([O-])(=O)=O.OS([O-])(=O)=O.OS([O-])(=O)=O.OS([O-])(=O)=O

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

InChI key

VCNAMBGKEDPVGQ-UHFFFAOYSA-J

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Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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T Ohashi et al.
Clinical chemistry, 46(4), 529-536 (2000-04-12)
Urinary iodine is a good biochemical marker for control of iodine deficiency disorders. Our aim was to develop and validate a simple, rapid, and quantitative method based on the Sandell-Kolthoff reaction, incorporating both the reaction and the digestion process into
Thermal behaviour of sulphato and nitrato complexes of cerium (IV).
Pokol G, et al.
J. Therm. Anal., 42(2-3), 343-359 (1994)
Fast colorimetric method for measuring urinary iodine.
Daniella Gnat et al.
Clinical chemistry, 49(1), 186-188 (2003-01-01)
K Tsuda et al.
Clinical chemistry, 41(4), 581-585 (1995-04-01)
We have modified an automated measurement system of urinary iodine (UI) and established a sensitive UI assay system by using ultraviolet (UV) digestion. The automated system is sensitive enough to detect concentrations of UI < 0.78 mumol/L (< 10 micrograms/dL)
Kanakapura Basavaiah et al.
Acta pharmaceutica (Zagreb, Croatia), 57(2), 211-220 (2007-05-18)
Two spectrophotometric methods are proposed for the assay of lansoprazole (LPZ) in bulk drug and in dosage forms using ceric ammonium sulphate (CAS) and two dyes, methyl orange and indigo carmine, as reagents. The methods involve addition of a known

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