Terbium(III) Fluoride - for Optics, laser
Product Introduction
Terbium(III) fluoride (TbF 3 , CAS 13708-63-9) is a stable white crystalline rare-earth fluoride, insoluble in water. It is used as a green-phosphor activator, a dopant in solid-state lasers and optical materials such as CaF 2 , and in fluoride glass, electroluminescent films, catalysts and research.
Product Overview
Terbium(III) fluoride (TbF 3 , CAS 13708-63-9) is an inorganic rare-earth fluoride supplied as a stable white crystalline solid. It is insoluble in water and is produced by adding hydrogen fluoride to a terbium salt solution followed by dehydration. TbF 3 is valued for the characteristic green luminescence of terbium ions, and it is used as an activator in phosphors and electroluminescent films, a dopant in lasers and optical crystals, and in fluoride glass and research applications.
| CAS No. | 13708-63-9 |
| Molecular Formula | TbF 3 |
| Appearance | White crystalline solid |
| Solubility | Insoluble in water |
| Properties | Stable rare-earth fluoride |
| Product Grade | Optical and laser-related grades |
Key Benefits
- Activator in green-emitting phosphors
- Dopant in solid-state lasers and optical crystals
- Used in preparing fluoride glasses
- Stable compound insoluble in water
- Source of terbium for research and synthesis
Applications
- Luminescence — activator in green phosphors for displays, electroluminescent thin films and luminescent zinc sulfide systems
- Laser technology — dopant in solid-state devices and specialty lasers
- Optical materials — dopant in calcium fluoride, calcium tungstate and strontium molybdate for controlled optical properties
- Fluoride glass — preparation of specialty fluoride glasses
- Catalysts and R&D — catalyst development and a terbium source for research and chemical synthesis
Production
Hydrogen fluoride is added to a terbium salt solution to precipitate the fluoride, which is then dehydrated to remove crystalline water and yield TbF 3 .
Safety, Packing & Storage
Dust may irritate the eyes, skin and respiratory tract; wear gloves, goggles and a dust mask, and keep the product sealed in a cool, dry place.
FAQ
Q: What is terbium(III) fluoride used for?
A: Green phosphors, solid-state lasers, optical materials, fluoride glass, catalysts and research.
Q: What are its CAS number and molecular formula?
A: CAS 13708-63-9, molecular formula TbF3.
Q: Why is it used in phosphors?
A: Terbium ions produce a characteristic strong green emission used in display phosphors.
Q: Is it soluble in water?
A: No, TbF3 is insoluble in water and chemically stable.
