Terbium Fluoride, Terbium Trifluoride, 13708-63-9

🧪 TERBIUM TRIFLUORIDE

1️⃣ Physical and Chemical Properties

• Chemical Name: Terbium(III) Fluoride

• Chemical Formula: TbF₃

• CAS Number: 13708-63-9

• EC Number: 237-349-2

• Molecular Weight: 197.93 g/mol

• Appearance: White or pale yellow crystalline powder

• Melting Point: ~1100–1150 °C

• Solubility: Insoluble in water; soluble in acids

• Stability: Stable at room temperature

• Density: ~7.35 g/cm³

• Crystal Structure: Hexagonal

2️⃣ Detailed Applications

• Optical glass production: Controls UV/IR transmission, reduces refractive loss

• Laser crystals: Used in scintillation and magneto‑optic systems

• Electronics: Additive in semiconductors and vacuum systems

• Coating technologies: Evaporation and sputtering target material

• Nanotechnology: Intermediate for Tb₂O₃ production

• Defense industry: Laser optics and precision optical filters

• Magnetic materials: Terbium‑based alloys for high magnetic moment applications

3️⃣ Synonyms, CAS, EC and Codes

4️⃣ Alternative / Substitute Products

• Cerium Fluoride (CeF₃): Alternative in optics and coatings

• Lanthanum Fluoride (LaF₃): Similar optical properties

• Zirconium Fluoride (ZrF₄): Used in glass and fiber optics

• Neodymium Fluoride (NdF₃): Comparable laser and optical applications

5️⃣ Sectoral Compliance Table

6️⃣ Common Names

• Terbium salt

• White fluoride crystal

• Optical additive

• Terbium fluoride powder

7️⃣ Production

• Starting material: Terbium‑containing rare‑earth ores

• Process: Reaction with hydrofluoric acid → Filtration → Crystallization

• Production grades: Technical and high‑purity grades

• Main producing countries: China, India, USA

• Commercial purity: 99% – 99.999%

8️⃣ Key Sectors and Processes

• Optical glass production: UV/IR transmission and refractive index control

• Laser crystal production: Scintillation and magneto‑optic systems

• Electronic vacuum systems: Surface additive and protective layer

• Defense optics: Precision laser filtering systems

• Magnetic materials: Terbium‑based alloys for advanced magnets