Lanthanum oxide
Lanthanum oxide
- CAS:
- 1312-81-8
- MF:
- La2O3
- MW:
- 325.81
Suppliers by country/region
Company Type
Properties
- 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
- Stability:
- Stable.
- LogP
- 1 at 20℃
Safety Information
- Symbol(GHS)
GHS07
- Signal word
- Warning
- Hazard statements
- H320-H315-H319-H335
- Precautionary statements
- P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P305+P351+P338+P337+P313
- 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
Use
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.
31 India supplier list of "Lanthanum oxide "
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- Product Name:Lanthanum(III) oxide, 99%
- Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Trader
- Country/Region: Gujarat,INDIA
![](/images/pro-3.jpg)
- Product Name:Lanthanum oxide
- Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Manufacturer
- Country/Region: Maharashtra,INDIA
![](/images/pro-3.jpg)
- Product Name:Lanthanum(III)oxide
- Products Intro:Brand:sigma aldrich | Product Number:1.10982 | Purity:foratomicabsorptionspectroscopy
- Company Type: Trader
- Country/Region: Bangalore,INDIA
![](/images/pro-3.jpg)
- Product Name:Lanthanum oxide
- Company Type: Trader
- Country/Region: New Delhi,INDIA
![](/images/pro-3.jpg)
- Product Name:Lanthanum oxide
- Company Type: Reagent
- Country/Region: Mumbai,INDIA
![](/images/pro-3.jpg)
- Product Name:Lanthanum Oxide
- Company Type: Reagent
- Country/Region: Pune,INDIA