Description

Hafnium is a lustrous, silvery-gray transition metal known for its excellent corrosion resistance and high melting point. It is a critical material in advanced industrial and technological applications due to its unique neutron-absorbing properties and ability to form stable, high-temperature alloys. This metal is essential for manufacturers and R&D facilities in the nuclear, aerospace, and semiconductor industries seeking reliable, high-purity materials for demanding environments.

Application

• Nuclear Reactor Control Rods: Primary application due to its excellent neutron absorption cross-section.
• High-Temperature Alloys & Superalloys: Used in jet engine components, rocket nozzles, and plasma cutting tips for enhanced strength and thermal stability.
• Microelectronics: Employed in the gate dielectrics of advanced semiconductor devices (e.g., hafnium-based high-k dielectrics).
• Optical Coatings: Utilized for protective and anti-reflective coatings on lenses and optical components.
• Gettering Agent: Acts as a scavenger for oxygen and nitrogen in vacuum tubes and other electronic components.
• Catalysis: Serves as a catalyst and catalyst support in certain petrochemical and organic synthesis reactions.

Basic Information

Product Name	Hafnium
CAS No.	7440-58-6
Molecular Formula	Hf
Molecular Weight	178.49 g/mol
Synonyms	Hafnium Metal; Hafnium Element; Hafnium Powder; Hafnium Sponge; Hafnium Rod; Hafnium Foil; C.I. 77990; Element 72
EINECS	231-166-4

Quality Control

Our hafnium is produced and handled under stringent quality management protocols to ensure batch-to-batch consistency and traceability. All materials are subjected to rigorous analytical testing, including emission spectroscopy (ICP-OES) and combustion analysis, to verify purity and control key metallic impurities. A Certificate of Analysis (COA) detailing specific lot results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and strong oxidizing agents. For long-term storage of fine powders, maintaining an inert atmosphere (e.g., argon) is recommended to prevent surface oxidation.

Specification

Item	Specification
Appearance	Silvery-gray metal pieces, powder, or sponge
Assay (Hf)	≥ 99.7%
Zirconium (Zr)	≤ 2.0%
Iron (Fe)	≤ 0.02%
Titanium (Ti)	≤ 0.005%
Oxygen (O)	≤ 0.02%
Nitrogen (N)	≤ 0.005%

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