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238538

Sigma-Aldrich

Cerium(III) nitrate hexahydrate

99% trace metals basis

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Synonym(s):
Cerium trinitrate, Cerous nitrate hexahydrate, Nitric acid cerium salt
Linear Formula:
Ce(NO3)3 · 6H2O
CAS Number:
10294-41-4
Molecular Weight:
434.22
EC Number:
233-297-2
MDL number:
MFCD00149631
PubChem Substance ID:
24854311
NACRES:
NA.23

Quality Level

200

Assay

99% trace metals basis

form

crystals and lumps

reaction suitability

reagent type: catalyst
core: cerium

impurities

1-2% La

SMILES string

[Ce+3].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O

InChI

1S/Ce.3NO3.6H2O/c;3*2-1(3)4;;;;;;/h;;;;6*1H2/q+3;3*-1;;;;;;

InChI key

QQZMWMKOWKGPQY-UHFFFAOYSA-N

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General description

Cerium (III) nitrate hexahydrate is the most common form of cerium nitrate. It is a white-to-yellow crystalline salt, and it is highly soluble in water, alcohol, and acetone, although solutions can appear slightly hazy. Like many trivalent metal nitrates, cerium (III) nitrate hexahydrate has a low-melting point of only 57 °C and thermally decomposes at low temperatures too, beginning at 190 °C and proceeding rapidly at 280 °C with complete decomposition at 390-400 °C.

Application

Cerium (III) nitrate hexahydrate is widely used as a source of cerium, especially in the synthesis of micro- or nano-structured ceria (cerium oxide). Because of its high solubility and low decomposition temperature, cerium (III) nitrate hexahydrate is an ideal reagent for hydrothermal reactions, sol-gel processing, and co-precipitation and calcination reactions.

Ceria is one of the best studied materials-platforms for catalysis and solid oxide fuel cells. Consequently scientists have developed well-controlled synthetic protocols using cerium (III) nitrate hexahydrate for preparing ceria nanoparticles including nano cubes, nanotubes, and nanorods. The tailorable synthesis facilitates using ceria as a catalyst support, for example leveraging the porosity of the microstructure to impregnate metals and metal alloys, or for example synthesizing ceria-based materials like ceria-zirconia.

Pictograms

CorrosionEnvironment
GHS05,GHS09

Signal Word

Danger

Hazard Statements

H318 - H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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Room temperature co-precipitation of nanocrystalline CeO2 and Ce0.8Gd0.2O1.9-d powder
Materials Letters, 61 , 1904-1907 (2007)
Wei-Qiang Han et al.
Journal of the American Chemical Society, 127(37), 12814-12815 (2005-09-15)
Well-crystalline CeO(2-x) nanotubes are synthesized via a mild hydrothermal reaction route using cerium nitrate and ammonium hydroxide as reactants. The CeO(2-x) nanotubes have the same structure as the bulk CeO2 but larger lattice parameter. The measurement of the ratio of
Kenji Kaneko et al.
Nano letters, 7(2), 421-425 (2007-02-15)
Colloidal cerium oxide (CeO2) nanocrystals prepared by hydrothermal synthesis were characterized by high-resolution transmission electron microscopy (HRTEM) and three-dimensional electron tomography (3D-ET). HRTEM images of individual CeO2 nanocrystals were then simulated by Blochwave and multislice simulations to determine the atomic
Microwave assisted preparation of cerium dioxide nanocubes
Tao Y, et al
Materials Chemistry and Physics, 112(3), 973-976 (2008)
Boosting CO2 hydrogenation via size-dependent metal?support interactions in cobalt/ceria-based catalysts.
Parastaev A, et al.
Nature catalysis, 3, 526?533 -526?533 (2020)
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