Product Listing Title: Lanthanum Fluoride (LaF3) Rare Earth Material for Optical and Metallurgical UseSEO Title: Lanthanum Fluoride LaF3 Rare Earth Powder for Optical and Metallurgical UseMeta Description: Lanthanum Fluoride LaF3 CAS 13709-38-1 rare earth material for scintillators, UV/IR optics, fluoride glass fibers, arc lamp electrodes and metallurgical alloys.URL Slug: /lanthanum-fluoride-laf3
Rare Earth Fluoride · CAS 13709-38-1
Lanthanum Fluoride (LaF3) Rare Earth Material for Optical and Metallurgical Use
Lanthanum Fluoride (LaF3) rare earth material
Product Summary
Lanthanum Fluoride (LaF3, CAS 13709-38-1, molecular weight 195.9) is a rare earth fluoride supplied by Sichuan Wonaixi New Materials Technology Co., Ltd. It keeps a stable +3 valence and is chemically inert, nearly insoluble in water and soluble only in concentrated HF. The material transmits light across a wide spectrum with low dispersion, forms solid solutions with other rare earth fluorides and shows ultra-low hygroscopicity — properties valued in optical, nuclear science and metallurgical processes.
Key Features
Defined Chemistry
Formula LaF3, CAS 13709-38-1, molecular weight 195.9, giving a fixed identity for formulation, documentation and incoming quality checks.
Chemical Inertness
Stable +3 valence resists acid and base corrosion, supporting use in aggressive chemical environments.
Controlled Solubility
Nearly insoluble in water and soluble only in concentrated HF by complexation, giving predictable behaviour in aqueous systems.
Low Hygroscopicity
Ultra-low moisture uptake helps preserve performance during long storage in sealed, fluorine-resistant containers.
Optical Range
The crystal structure transmits from the UV to the IR range with low dispersion, supporting precision optical components and imaging.
Solid Solution Host
Forms solid solutions with other rare earth fluorides, allowing use as a host in fluoride glass and crystal research where the luminescence spectrum can be adjusted by doped rare earth ions.
Technical Specifications
Chemical Formula
LaF3
CAS Number
13709-38-1
Molecular Weight
195.9 g/mol
Material Type
Rare Earth Fluoride
Valence State
La3+, stable +3
Solubility
Nearly insoluble in water; soluble in concentrated HF
Corrosion Resistance
Resists acid and base corrosion
Hygroscopicity
Ultra-low
Optical Transmittance
UV to IR range with low dispersion
Shelf Life
5–7 years (industrial grade); 2–3 years (high-purity grade)
Storage
Airtight in fluorine-resistant containers at 15–25 °C, RH below 60%, separated from strong acids
Models and Options
Lanthanum Fluoride is offered in an industrial grade and a high-purity grade. Because shelf life differs by grade (5–7 years for industrial grade and 2–3 years for high-purity grade), grade selection should follow the target application and storage plan. The supplier produces 9 major categories of rare earth products across more than 50 refined specifications.
Materials and Structure
The material is built on a stable lattice in which La3+ and F- ions are tightly bonded and hard to dissociate. The crystal structure passes light from the UV to the IR range and shows no decomposition before its melting point, supporting high-temperature smelting and coating operations. Lattice fluoride ions barely leach out, and the compound forms solid solutions with other rare earth fluorides; doped rare earth ions can be used to adjust the luminescence spectrum.
Applications
Scintillators and rare earth crystal laser materials
Fluoride glass optical fibers and rare earth infrared glass for medical image display and nuclear science
UV and IR prisms and lenses, and anti-reflective films for wafer photolithography
Carbon electrodes for arc lamps in lighting sources
Flux for aluminium alloy smelting and catalyst support for fluorination reactions
Metallurgical special alloys and electrolytic production of metallic lanthanum
Acid-resistant dental fillers, fluoride detection and luminescent host research
Customization
Grade selection is the main customization route: industrial grade suits metallurgical, lighting and catalysis work, while high-purity grade fits optical, scintillator and luminescent host use. Share your target application, working temperature and storage conditions before ordering so the grade can be confirmed against your process.
FAQ
What is the CAS number and formula of this product?
Lanthanum Fluoride has the formula LaF3, CAS number 13709-38-1 and a molecular weight of 195.9 g/mol.
What grades are available?
An industrial grade and a high-purity grade are available. Shelf life is 5–7 years for industrial grade and 2–3 years for high-purity grade.
How should Lanthanum Fluoride be stored?
Store it airtight in fluorine-resistant containers at 15–25 °C with RH below 60%, separated from strong acids.
Is it soluble in water?
It is nearly insoluble in water and dissolves only in concentrated HF through complexation.
What are the main applications?
Typical uses include scintillators, laser crystals, fluoride glass optical fibers, infrared glass for medical image display and nuclear science, arc lamp carbon electrodes, metallurgical special alloys and electrolytic metallic lanthanum, plus UV/IR optics, wafer photolithography films and fluorination catalyst support.
What safety precautions are recommended?
Wear nitrile gloves, a dust mask and goggles. Dust slightly irritates the respiratory tract, and long-term acid contact can cause fluoride irritation, so ventilate during high-temperature processing.
Is the supplier certified?
Yes. The manufacturer holds ISO 9001 (GB/T19001-2016/ISO9001:2015), certificate number 06526Q01354R101, issued by the CFL Certification Center and valid from 2026-06-01 to 2029-05-31.
Inquiry Information
Sichuan Wonaixi New Materials Technology Co., Ltd.
