Lanthanum fluoride
Compounds of rare-earths
- Molecular Formula: LaF3
- CAS NO.: 13709-38-1
- EINECS No.: 237-252-8
- Package: 20kg,50kg /bag
Lanthanum fluoride technical data:
| Item | LaF3-3N5 | LaF3-4N | LaF3-4N5 |
| REO（wt%） | ≥78 | ≥78 | ≥78 |
| Relative purity of rare earths（wt%） | |||
| La2O3/REO | ≥99.95 | ≥99.99 | ≥99.995 |
| CeO2/REO | ≤0.01 | ≤0.005 | ≤0.003 |
| Pr6O11/REO | ≤0.01 | ≤0.002 | ≤0.0005 |
| Nd2O3/REO | ≤0.01 | ≤0.002 | ≤0.0005 |
| Sm2O3/REO | ≤0.0005 | ≤0.0002 | ≤0.0002 |
| Y2O3/REO | ≤0.0005 | ≤0.0002 | ≤0.0002 |
| Non-RE impurities（wt%） | |||
| Fe2O3 | ≤0.01 | ≤0.005 | ≤0.005 |
| CaO | ≤0.1 | ≤0.05 | ≤0.05 |
| Cl– | ≤0.05 | ≤0.05 | ≤0.05 |
| SiO2 | ≤0.03 | ≤0.01 | ≤0.01 |
| F | ≥27 | ≥27 | ≥27 |
Application:
Lanthanum fluoride (LaF3) has multiple uses, mainly including the following aspects:
1. Medical and scientific applications: Lanthanum fluoride is used to prepare scintillators, which is crucial for modern medical image display technology and nuclear science.
2. In the fields of optics and optoelectronics, lanthanum fluoride is used to manufacture rare earth crystal laser materials, fluoride glass optical fibers, and rare earth infrared glass. Due to its lower refractive index, it is also used as a raw material for lenses and windows, effectively reducing light dispersion and improving the imaging quality of optical instruments.
3. Chemical analysis and metallurgical industry: In chemical analysis, lanthanum fluoride is used to manufacture fluoride ion selective electrodes; In the metallurgical industry, it is used for manufacturing special alloys and electrolytic production of metallic lanthanum.
4. Environmental protection: Due to its good chemical and thermal stability, lanthanum fluoride can be used as an adsorbent and catalyst carrier for treating industrial wastewater and exhaust gas, effectively removing harmful substances from the environment.
5. Electronic devices: used as dielectric materials to manufacture high-frequency and high-efficiency electronic devices.
Ceramic and glass manufacturing: Adding lanthanum fluoride can improve the physical properties and chemical stability of products when preparing advanced ceramics and glass.
6. Research field: The crystal structure and physical properties of lanthanum fluoride make it a key material for many high-energy physics experiments and quantum computing experiments.
7. Other applications: Lanthanum fluoride is also used in the manufacture of carbon electrodes for arc lamps, as a raw material for lanthanum metal, as an active additive for polishing materials, and as a phosphor lampshade.