Description
Specifications Table
Product Name – Hafnium(IV) oxide, Spectrographic Grade, 99.9% (metals basis excluding Zr), Zr typically <80ppm
Quantity/Pack Size – 10g, 2g
Form – Powder
Grade – Spectrographic
Application – Spectroscopy, optical coatings, high-purity research
Product Overview
Hafnium(IV) oxide (HfO₂) in spectrographic grade offers exceptional purity at 99.9% metals basis, with zirconium content strictly controlled below 80ppm, ensuring minimal interference in high-sensitivity applications. This ultra-pure powder is engineered for demanding environments where trace impurities can compromise results, such as advanced spectroscopy, optical thin-film deposition, and semiconductor research. The material’s high refractive index and thermal stability make it a preferred choice for specialized coatings and dielectric layers. Its fine particle size distribution enhances uniformity in thin-film applications, while the spectrographic certification guarantees consistency across batches. The low zirconium content is particularly critical for applications requiring precise elemental discrimination, as zirconium’s presence can skew analytical data. This grade is processed under stringent conditions to eliminate contaminants, ensuring reliability in high-precision instrumentation and research protocols. The powder’s chemical inertness and resistance to corrosion further extend its utility in harsh experimental conditions.
FAQs
1. What is the significance of the 99.9% metals basis purity in this Hafnium(IV) oxide?
The 99.9% metals basis purity indicates that the hafnium content is free from other metallic contaminants, which is essential for applications where trace impurities could alter results, such as in spectroscopy or semiconductor fabrication.
2. How does the Zr <80ppm specification impact performance?
Zirconium is chemically similar to hafnium and can interfere with analytical techniques. Keeping Zr below 80ppm ensures minimal cross-contamination, which is critical for accurate spectral analysis and high-purity research.
3. Is this grade suitable for optical coating applications?
Yes, the high purity and controlled particle size make it ideal for optical coatings, particularly where high refractive indices and low absorption losses are required.
4. What storage conditions are recommended to maintain purity?
Store in a cool, dry environment in a tightly sealed container to prevent moisture absorption and contamination, which could degrade the material’s spectrographic properties.
5. Are there alternatives if I need hafnium oxide with lower zirconium content?
For applications requiring even lower zirconium levels, specialized grades with Zr <20ppm may be available, though they typically come at a higher cost and may require custom sourcing.
