mu-Oxidobis(oxido)dilanthanum
Basic information
- CAS
1312-81-8- Standard SMILES
[O]=[La][O][La]=[O]- InChIKey
KTUFCUMIWABKDW-UHFFFAOYSA-N- Molecular formula
- La2O3
- Average molar mass
- 325.809 g/mol
- Monoisotopic mass
- 325.79747
Names & identifiers
- Preferred name
- mu-Oxidobis(oxido)dilanthanum
- IUPAC
- oxo(oxolanthaniooxy)lanthanum
- English name
- Lanthanum oxide
- Molecular formula
- La2O3
- Molecular weight
- 325.81
Names & synonyms
mu-Oxidobis(oxido)dilanthanumSCHEMBL29349621Lanthanum(III) oxide, REacton?Lanthanum(III) oxide, 99.9%LANTHANUM OXIDE, 99.99%Lanthanum(III) oxide, >=99.9%AKOS025311171FL34028L0235Lanthanum(III) oxide, for AAS, >=99.9%Lanthanum(III) oxide, 99.99% trace metals basisLanthanum oxide (La2O3 ), 99.99% (REO) Nano
Show more names
LANTHANUM(III) OXIDELanthanum(Ⅲ) oxideLANTHANUM OXIDE, 99.99%LANTHANUM OXIDE, 99.99%LANTHANUM OXIDE, 99.99%LANTHANUM OXIDE, 99.99%O3La2LanthanalathanialanthaniaLanthanoxidLanthan oxide99.999% (REO)
Lanthanum(III) oxide, 99.999% trace metals basisLanthanum(III) oxide, nanopowder, <100 nm particle size (TEM), 99% trace metals basis
Database identifiers
- CAS
1312-81-8- PubChem CID
- 3280778
- DTXSID
DTXSID7051478
Properties
Computed structural properties
- Topological polar surface area
- 43.4 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Formal charge
- 0
- Complexity
- 34.2
Physicochemical properties
- Melting point
- 2315 °C · 2315 °C
- Boiling point
- 4200 °C · 4200 °C
- Density
- 6.51 g/mL · 6.51 g/mL at 25 °C(lit.)
- bulk density
- 1300 kg/m3 · 1300kg/m3
- Flash point
- 4200 °C · 4200°C
- storage temp.
- no restrictions.
- solubility
- 2 O; · insoluble in H2O; soluble in dilute acid solutions
- form
- nanopowder
- color
- White to yellow
- Specific Gravity
- 6.51 · 6.51
- PH
- 9 · 9.0 (50g/l, H2O, 20℃)(slurry)
- Resistivity
- 1 · 1 ∞ 10*14 (550°C) (ρ/μΩ.cm)
- Water Solubility
- INSOLUBLE
- Specific Heat Capacity
- 0.33 J/ · Cp(crystal): 0.33 J/(g·K), at 25℃
- Sensitive
- Hygroscopic
- Crystal Structure
- Trigonal
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Gloves
- wgk
- 1
- tsca
- TSCA listed
- rtecs
- OE5330000
- hs_code
- 28469000
- Toxicity
- LD50 orally in Rabbit: > 9968 mg/kg
- risk_code
- 36/37/38-36
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 26-36-39
- Storage Class
- 13 - Non Combustible Solids
- Hazard statements
- H320-H315-H319-H335
- REACH Registrations
- Active
- Precautionary statements
- P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P305+P351+P338+P337+P313
Chemistry & industry
Applications
UsesLanthanum 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.
UsesLanthanum(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.
General DescriptionLanthanum (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.
Preparation methods
PreparationLanthanum 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
Upstream & downstream products
Upstream raw materials
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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