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Send EmailPraseodymium Fluoride, Praseodymium Trifluoride, 13709-46-1
🧪 PRASEODYMIUM FLUORIDE
1️⃣ Physical and Chemical Properties
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Chemical Name: Praseodymium(III) Fluoride
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Chemical Formula: PrF₃
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CAS Number: 13709-46-1
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EC Number: 237-276-4
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Molecular Weight: 197.90 g/mol
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Appearance: Greenish‑yellow crystalline powder (characteristic of praseodymium compounds)
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Melting Point: ~1430 °C
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Solubility: Insoluble in water; soluble in acids
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Stability: Stable at room temperature
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Density: ~6.2 g/cm³
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Crystal Structure: Hexagonal
2️⃣ Detailed Applications
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Optical glass production: Controls UV transmission, improves refractive index stability
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Laser crystals: Used in scintillation and magneto‑optic systems
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Electronics: Additive in semiconductors and vacuum systems
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Coating technologies: Evaporation and sputtering target material
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Nanotechnology: Intermediate for Pr₂O₃ production
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Defense industry: Optical filters and laser systems
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Catalysis: Rare‑earth catalyst precursor in chemical processes
3️⃣ Synonyms, CAS, EC and Codes
| Item | Information |
|---|---|
| CAS No | 13709-46-1 |
| EC No | 237-276-4 |
| UN No | 3077 (environmentally hazardous substance) |
| Customs HS Code | 2846.90.00.00.19 |
| Other Names | Praseodymium Fluoride, Praseodymium trifluoride, PrF₃ |
4️⃣ Alternative / Substitute Products
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Cerium Fluoride (CeF₃): Optical and coating applications
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Lanthanum Fluoride (LaF₃): Similar optical properties
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Neodymium Fluoride (NdF₃): Laser and optical applications
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Zirconium Fluoride (ZrF₄): Fiber optics and specialty glass
5️⃣ Sectoral Compliance Table
| Sector | Compliance | Notes |
|---|---|---|
| Optics & Laser | ✅ | Scintillation and optical filter systems |
| Electronics | ✅ | Vacuum systems and semiconductor additive |
| Defense Industry | ✅ | Laser optics and filter systems |
| Nanotechnology | ✅ | Intermediate for Pr₂O₃ production |
| Catalysis | ✅ | Rare‑earth catalyst precursor |
| Cosmetics | ❌ | Not suitable for direct use |
| Food & Pharma | ❌ | Restricted due to fluoride composition |
6️⃣ Common Names
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Praseodymium salt
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Greenish fluoride crystal
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Optical additive
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Praseodymium fluoride powder
7️⃣ Production
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Starting material: Praseodymium‑containing rare‑earth ores
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Process: Reaction with hydrofluoric acid → Filtration → Crystallization
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Production grades: Technical and high‑purity grades
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Main producing countries: China, India, USA
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Commercial purity: 99% – 99.999%
8️⃣ Key Sectors and Processes
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Optical glass production: UV transmission and refractive index control
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Laser crystal production: Scintillation and magneto‑optic systems
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Electronic vacuum systems: Surface additive and protective layer
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Defense optics: Precision laser filtering systems
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Catalysis: Rare‑earth catalyst precursor in chemical industries
