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Merck
CN

289205

Lanthanum(III) oxide

suitable for AAS, ≥99.9%

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About This Item

Linear Formula:
La2O3
CAS Number:
1312-81-8
Molecular Weight:
325.81
NACRES:
NA.21
PubChem Substance ID:
24857397
UNSPSC Code:
12352200
EC Number:
215-200-5
MDL number:
MFCD00011071

Key Documents

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Product Name

Lanthanum(III) oxide, suitable for AAS, ≥99.9%

InChI key

KTUFCUMIWABKDW-UHFFFAOYSA-N

InChI

1S/2La.3O

SMILES string

O=[La]O[La]=O

agency

meets analytical specifications of BP
meets analytical specifications of E252
meets analytical specifications of Ph. Eur.
meets analytical specifications of USP

reg. compliance

meets analytical specifications of FCC

assay

≥99.9% trace metals basis
≥99.9%

form

powder

reaction suitability

reagent type: catalyst
core: lanthanum

technique(s)

AAS: suitable

density

6.51 g/mL at 25 °C (lit.)

Quality Level

100

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Application

Lanthanum (III) oxide was used as an analytical standard in inductively coupled plasma atomic emission spectrometry (ICP-AES) for chemical characterization of ancient pottery.
Precursor to LAMOX fast ion conductors and superconductors.
Suitable for use as atomic absorption standard.

General description

Lanthanum (III) oxide is an alkaline earth oxide, and is a diamagnetic, isostructural analog of neodymium oxide. It is also an efficient recyclable catalyst, and can be used in coupling various aryl halides with aromatic/alkyl thiols.

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ8847
MKCZ4909
MKCX5356
0000342368
MKCV6088

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Aldol addition of acetone, catalyzed by solid base catalysts: magnesium oxide, calcium oxide, strontium oxide, barium oxide, lanthanum (III) oxide and zirconium oxide.
Zhang G
Applied Catalysis, 36, 189-197 (1988)
Lanthanum (III) oxide as a recyclable catalyst for the synthesis of diaryl sulfides and diaryl selenides.
The Journal of Organic Chemistry, 34, 5902-5905 (2009)
THERMOPHYSICAL PROPERTIES OF THE LANTHANIDE OXIDES. I. HEAT CAPACITIES, THERMODYNAMIC PROPERTIES, AND SOME ENERGY LEVELS OF LANTHANUM (III) AND NEODYMIUM (III) OXIDES FROM 5 TO 350? K.
The Journal of Physical Chemistry, 67 (2), 339-345 (1963)
Microwave-assisted versus conventional decomposition procedures applied to a ceramic potsherd standard reference material by inductively coupled plasma atomic emission spectrometry.
Papadopoulou DN
Analytica Chimica Acta, 505 (1), 173-181 (2004)
Hui Sun et al.
Bioresource technology, 101(3), 953-958 (2009-09-22)
ZrO(2) supported La(2)O(3) catalyst prepared by impregnation method was examined in the transesterification reaction of sunflower oil with methanol to produce biodiesel. It was found that the catalyst with 21 wt% loaded La(2)O(3) and calcined at 600 degrees C showed
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