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Lanthanum oxide

Product Name
Lanthanum oxide
CAS No.
1312-81-8
Chemical Name
Lanthanum oxide
Synonyms
Lanthanum(Ⅲ) oxide;LANTHANUM(III) OXIDE;LANTHANUM OXIDE, 99.99%LANTHANUM OXIDE, 99.99%LANTHANUM OXIDE, 99.99%LANTHANUM OXIDE, 99.99%;O3La2;Lanthana;lathania;lanthania;Lanthanoxid;Lanthan oxide;99.999% (REO)
CBNumber
CB7464647
Molecular Formula
La2O3
Formula Weight
325.81
MOL File
1312-81-8.mol
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Lanthanum oxide Property

Melting point:
2315 °C
Boiling point:
4200 °C
Density 
6.51 g/mL at 25 °C(lit.)
Flash point:
4200°C
storage temp. 
no restrictions.
solubility 
insoluble in H2O; soluble in dilute acid solutions
form 
nanopowder
Specific Gravity
6.51
color 
White to yellow
PH
9.0 (50g/l, H2O, 20℃)(slurry)
Resistivity
1 ∞ 10*14 (550°C) (ρ/μΩ.cm)
Water Solubility 
INSOLUBLE
Sensitive 
Hygroscopic
Crystal Structure
Trigonal
Merck 
14,5363
crystal system
Three sides
Space group
P3m1
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.3940.3940.61390901200.0824
Stability:
Stable.
LogP
1 at 20℃
CAS DataBase Reference
1312-81-8(CAS DataBase Reference)
EPA Substance Registry System
Lanthanum oxide (La2O3) (1312-81-8)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38-36
Safety Statements 
26-36-39
WGK Germany 
1
RTECS 
OE5330000
TSCA 
Yes
HS Code 
28469000
Toxicity
LD50 orally in Rabbit: > 9968 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H320Causes eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
GF90154852
Product name
Lanthanum oxide
Purity
powder, 200 max. part. size (micron), weight 50?g
Packaging
1EA
Price
$421
Updated
2024/03/01
Sigma-Aldrich
Product number
GF10845626
Product name
Lanthanum oxide
Purity
powder, max. particle size 200 micron, weight 200?g
Packaging
1EA
Price
$875
Updated
2024/03/01
Sigma-Aldrich
Product number
199923
Product name
Lanthanum(III) oxide
Purity
99.99% trace metals basis
Packaging
100g
Price
$205
Updated
2024/03/01
Sigma-Aldrich
Product number
199923
Product name
Lanthanum(III) oxide
Purity
99.99% trace metals basis
Packaging
500g
Price
$595
Updated
2024/03/01
Sigma-Aldrich
Product number
1.12220
Product name
Lanthanum(III) oxide
Purity
EMPLURA?
Packaging
100g
Price
$315
Updated
2024/03/01
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Lanthanum oxide Chemical Properties,Usage,Production

Chemical Properties

Lanthanum oxide is an oxide of lanthanum (III), white orthorhombic or amorphous powder. Soluble in acid, ethanol, ammonium chloride, insoluble in water, ketone. It is mainly used in the manufacture of precision optical glass and optical fiber.

Uses

Lanthanum oxide is used to make high-quality glass, ceramics, carbon-arc electrodes, and fluorescent lamps. Lanthanum (III) oxide was used as an analytical standard in inductively coupled plasma atomic emission spectrometry (ICP-AES) for chemical characterization of ancient pottery.

Uses

Lanthanum(III) oxide is used as a precursor to LAMOX fast ion conductors and superconductors. It is also used in the manufacture of optical glasses, piezoelectric and thermoelectric material. It is also useful for X-ray imaging intensifying screens, phosphors as well as dielectric and conductive ceramics. In addition, it is used as a catalyst to effect certain organic transformations. It is one of the active ingredients and finds application in thermoelectric and piezoelectric materials.

Application

Lanthanum Oxide, also called Lanthana, high purity Lanthanum Oxide (99.99% to 99.999%) is applied in making special optical glasses to improves the alkali resistance of glass, and is used in La-Ce-Tb phosphors for fluorescent lamps and making special optical glasses, such as infrared-absorbing glass, as well as camera and telescope lenses, Low grade of Lanthanum Oxide is widely used in ceramics and FCC catalyst, and also as raw material for Lanthanum Metal production; Lanthanum Oxide is also used as a grain growth additive during the liquid phase sintering of Silicon Nitride and Zirconium Diboride.

Preparation

Lanthanum oxide can be produced by direct combustion of lanthanum in oxygen or air. The oxide also may be prepared by decomposition of an oxo salt of lanthanum, such as nitrate, sulfate, carbonate, hydroxide or oxalate.
La(CO3)3•8H2O → La2O3 + 3CO2 + 8H2O
2La2(C2O4)3•9H2O + 3O2 → 2La2O3 + 12CO2 + 18H2O

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.

Flammability and Explosibility

Non flammable

Industrial uses

Lanthanum oxide (La2O3) has a melting pointof 2250°C, is soluble in acids, and very slightlysoluble in water. This oxide of a rare earth elementoccurs in monazite and bastnasite. It ismarketed as the oxide or as other salts such asthe oxalate, nitrate, or hydrate. It quicklyabsorbs water and CO2 from the atmosphere.Its chief use is as an ingredient in nonsilica,rare element optical glass with oxides of tungsten, tantalum, and thorium. Lanthanumincreases refractive index, decreases dispersion,and is also used in x-ray image intensifyingscreens that speed up x-ray exposure asmuch as two to ten times so that diagnosticdosages may be reduced by as much as 80%with fewer retakes. It is also used in bariumtitanate capacitors.

Lanthanum oxide Preparation Products And Raw materials

Raw materials

Extractant PYROGALLOL RED Rare earth micronutrients LANTHANUM METHYLPHOSPHONIC ACID Phosphine

Preparation Products

Lanthanum Fluoride
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View Lastest Price from Lanthanum oxide manufacturers

HebeiShuoshengImportandExportco.,Ltd
Product
Lanthanum oxide 1312-81-8
Price
US $6.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
2000KG/Month
Release date
2024-08-06
Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Lanthanum Oxide 1312-81-8
Price
US $120.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-29
hebei hongtan Biotechnology Co., Ltd
Product
Lanthanum oxide 1312-81-8
Price
US $80.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000
Release date
2024-03-26

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