Lanthanum cerium fluoride
Lanthanum cerium fluoride technical data:
| Item | LaCeF3A | LaCeF3B |
| REO（wt%） | ≥78 | ≥78 |
| La Ce fractionation and rare earth impurities（wt%） | ||
| La2O3/REO | 35±2 | 35±2 |
| CeO2/REO | 65±2 | 65±2 |
| Pr6O11/REO | ≤0.01 | ≤0.005 |
| Nd2O3/REO | ≤0.01 | ≤0.005 |
| Sm2O3/REO | ≤0.0005 | ≤0.0002 |
| Y2O3/REO | ≤0.0005 | ≤0.0002 |
| Non-RE impurities（wt%） | ||
| Fe2O3 | ≤0.01 | ≤0.005 |
| CaO | ≤0.1 | ≤0.05 |
| Cl– | ≤0.1 | ≤0.05 |
| SiO2 | ≤0.01 | ≤0.01 |
| F | ≥27 | ≥27 |
Application:
Lanthanum cerium fluoride has various uses, mainly including the following aspects:
1. Optical materials: Lanthanum cerium fluoride has important applications in the field of optical materials. It has excellent optical properties such as high refractive index and low scattering index, and is therefore widely used in optical coatings, lasers, and fiber optic communications. In optical coating, lanthanum cerium fluoride can be used as an anti reflective film material to improve transmittance and reflectivity; In lasers, it serves as a gain medium to enhance the output power and efficiency of the laser; In fiber optic communication, lanthanum cerium fluoride enhances the distance and quality of signal transmission.
2. Ceramic materials: Lanthanum cerium fluoride plays a key role in the preparation of ceramic materials. Its high melting point and good thermal stability make it an excellent additive for ceramic materials, which can improve the sintering temperature and mechanical properties of ceramics. In addition, lanthanum cerium fluoride can also adjust the color of ceramics to present a rich and colorful color.
3. Catalyst: Lanthanum cerium fluoride is also widely used in the field of catalysts. Due to its excellent redox performance and catalytic activity, lanthanum cerium fluoride is used as a catalyst for automobile exhaust purification, petroleum processing, and chemical synthesis. In the purification of automobile exhaust, lanthanum cerium fluoride can convert harmful gases into harmless substances, reducing the pollution of vehicle emissions to the environment.
4. Luminescent materials: Lanthanum cerium fluoride is an important luminescent material widely used in fields such as lighting, display, and fluorescent labeling. Its high fluorescence efficiency and long lifespan make it an ideal choice for preparing high brightness and high stability luminescent materials. In terms of lighting, lanthanum cerium fluoride is used in LED lighting devices to improve lighting efficiency and energy utilization; In terms of display, it is used for fluorescent screens to enhance the brightness and color reproduction of the display screen; In terms of fluorescent labeling, lanthanum cerium fluoride is used for biomedical research and fluorescent probes.
5. Other applications: Lanthanum cerium fluoride is also used in the smelting industry, welding rod industry, electroplating industry, glass/ceramics, polishing materials and other fields. In addition, it can also be used as a raw material for the preparation of special alloys and electrolytic metal lanthanum.