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Send EmailLanthanum Fluoride, Lanthanum (III) Fluoride, 13709-38-1
🔢 Lanthanum Fluoride
CAS No: 13709-38-1 Chemical Formula: LaF₃
A) Technical Properties
| Property | Value |
|---|---|
| Molecular Weight | 195.90 g/mol |
| Appearance | White crystalline powder |
| Solubility | Insoluble in water; soluble in acids |
| Melting Point | ~1493 °C |
| Density | ~5.94 g/cm³ |
| Purity | ≥99.9% (high-purity optical/electronic grade) |
| Thermal Stability | Excellent |
| Refractive Index | High (used in optical applications) |
| Packaging | Moisture-proof, sealed containers |
B) Application Areas
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Optical Glass & Crystals: Used in fluoride-based laser crystals and high-transparency optics.
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Scintillators: Key component in radiation detectors and gamma spectroscopy (e.g., LaBr₃:Ce, LaF₃:Ce).
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Ceramics: Enhances ionic conductivity in fluoride-based solid electrolytes.
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Metallurgy: Used as a flux in aluminum and rare earth metal processing.
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Thin Films: Applied in anti-reflective and UV-resistant coatings.
C) Alternatives
| Application Area | Alternatives | Notes |
|---|---|---|
| Optical Crystals | Yttrium Fluoride, Calcium Fluoride | Different optical windows and hardness |
| Scintillators | Lanthanum Bromide, Barium Fluoride | Varying light yield and decay time |
| Ceramic Electrolytes | Lithium Fluoride, Zirconium Fluoride | Different ionic mobility and stability |
D) Production Process
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Source: Typically synthesized from lanthanum oxide or carbonate.
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Reaction: Reacted with hydrofluoric acid (HF) to form LaF₃.
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Filtration & Drying: Precipitate is filtered, washed, and dried under controlled conditions.
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Calcination (optional): For high-purity or crystalline forms, thermal treatment may be applied.
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Packaging: Packed in sealed containers to prevent moisture uptake.
E) Synonyms / Other Names
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Lanthanum(III) fluoride
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LaF₃
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Rare earth fluoride
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Fluoride form of lanthanum
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Optical-grade lanthanum fluoride
