Description

Hafnium Fluoride (HfF₄) is a high-purity inorganic salt of hafnium, a critical metal valued for its exceptional thermal stability and chemical resistance. This compound is essential for advanced manufacturing processes where precise material properties are non-negotiable. It is primarily utilized in the production of optical coatings, specialty glass, and as a precursor in chemical vapor deposition (CVD) for the semiconductor and aerospace industries.

Application

• Optical Thin Films & Coatings: A key component in the manufacture of anti-reflective, high-refractive-index, and laser-resistant coatings for precision lenses, mirrors, and optical fibers.
• Specialty Glass & Ceramics: Used as an additive to modify the refractive index, density, and radiation resistance of glasses and ceramic materials for specialized applications.
• Chemical Vapor Deposition (CVD): Serves as a crucial precursor for depositing hafnium-containing thin films, such as hafnium oxide (HfO₂), which are vital for advanced semiconductor gate dielectrics.
• Nuclear Industry: Employed in control rod applications and as a neutron absorber due to hafnium's high neutron capture cross-section.
• Catalysis & Chemical Synthesis: Acts as a catalyst or catalyst support in specific fluorination and organic synthesis reactions.
• Research & Development: Used in academic and industrial R&D for developing new materials with tailored thermal and chemical properties.

Basic Information

Product Name	Hafnium Fluoride
CAS No.	13709-52-9
Molecular Formula	HfF₄
Molecular Weight	254.48 g/mol
Synonyms	Hafnium(IV) fluoride; Tetrafluorohafnium; Hafnium tetrafluoride; HAFNIUM FLUORIDE (HF F4); Hafnium fluoride (HfF4)
EINECS	237-272-2

Quality Control

Our Hafnium Fluoride is produced and tested under a stringent quality management system. Each batch undergoes comprehensive analysis to ensure it meets precise specifications for purity and impurity profiles, critical for high-performance applications in optics and electronics. Certificates of Analysis (COA) detailing lot-specific results are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is moisture-sensitive; keep the container tightly sealed in a dry environment to prevent hydrolysis. Incompatible with strong bases.

Specification

Item	Specification
Appearance	White powder or crystals
Identification (IR)	Conforms
Assay (HfF₄)	≥ 99.9%
Assay (Hf)	≥ 70.0%
Zirconium (Zr)	≤ 2.0%
Chloride (Cl)	≤ 0.01%
Sulfate (SO₄)	≤ 0.01%
Heavy Metals (as Pb)	≤ 0.001%
Iron (Fe)	≤ 0.001%
Loss on Drying	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.