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L4000

Sigma-Aldrich

氧化镧(III)

≥99.9%

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别名:
三氧化二镧, 三氧化镧
线性分子式:
La2O3
CAS号:
1312-81-8
分子量:
325.81
EC 号:
215-200-5
MDL编号:
MFCD00011071
PubChem化学物质编号:
57654328
NACRES:
NA.23

检测方案

≥99.9%

形式

powder

反应适用性

reagent type: catalyst
core: lanthanum

密度

6.51 g/mL at 25 °C (lit.)

应用

battery manufacturing

SMILES字符串

O=[La]O[La]=O

InChI

1S/2La.3O

InChI key

KTUFCUMIWABKDW-UHFFFAOYSA-N

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相关类别

一般描述

La2O3是一种宽带隙p型半导体，也称为倍半氧化镧。它是唯一具有空Ln-4f外壳的镧系氧化物，广泛用于制备光学材料、电介质和导电陶瓷。La2O3也可用作许多有机转化的催化剂。

应用

氧化镧（III）提高了玻璃的耐碱性能，由于高折射率和低色散，被广泛应用于照相机和望远镜透镜、红外吸收玻璃和其他特种光纤的制备。例如，可作为起始材料制备用于诊断X射线屏蔽的La2O3-CaO-B2O3-SiO2玻璃。

可用于制备热膨胀系数高、导热系数低的热障涂料。

还可用作合成二苯基硫化物和硒化物的可循环催化体系。
LAMOX 快离子导体和超导体的前体。

特点和优势

  • 高折射率
  • 热稳定性
  • 硬度
  • 高介电常数

储存分类代码

13 - Non Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves

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A K Singh et al.
Optics letters, 37(5), 776-778 (2012-03-02)
Low-power-threshold cw laser-induced incandescence (CWLII) has been observed in La(2)O(3):Er(3+)-Yb(3+) phosphor on excitation by a 976 nm IR laser. It is suggested that incandescence originates from the extensive heating induced by the nonradiative processes taking place following the laser excitation.
A A Nogiwa-Valdez et al.
Acta biomaterialia, 9(4), 6226-6235 (2012-12-12)
Zirconia has been used as an orthopaedic material since 1985 and is increasingly used in dental applications. One major concern with the use of zirconia is the significant loss in mechanical properties through hydrothermal degradation, with the uncontrolled transformation of
Pei Lu et al.
Environmental technology, 33(7-9), 1029-1036 (2012-06-23)
In this paper, catalytic samples of 10, 20, 30, 40 and 50% (w/w) urea/activated carbon fibre (AFC), 10% urea--5% La2O3/ACF, 10% urea--10% La2O3/ACF, 10% urea--15% La2O3/ACF, 20% urea--5% La2O3/ACF, 20% urea--10% La2O3/ACF, and 20% urea-15% La2O3/ACF were prepared and used
Ling Zhang et al.
Journal of hazardous materials, 190(1-3), 848-855 (2011-05-03)
Phosphate removal from wastewater is very important for the prevention of eutrophication. Adsorption of phosphate from water was investigated using activated carbon fiber loaded with lanthanum oxide (ACF-La) as a novel adsorbent. The effects of variables (La/ACF mass ratio, impregnation
Bo Xu et al.
The journal of physical chemistry. A, 115(37), 10245-10250 (2011-08-13)
Lanthanum oxide cluster anions are prepared by laser ablation and reacted with n-C(4)H(10) in a fast flow reactor. A time-of-flight mass spectrometer is used to detect the cluster distribution before and after the reactions. (La(2)O(3))(m=1-3)OH(-) and La(3)O(7)H(-) are observed as
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