Cookies disclaimer

I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.

12055-23-1 - Hafnium(IV) oxide, Spectrographic Grade, 99.9% (metals basis excluding Zr), Zr typically <80ppm - 11836 - Alfa Aesar

11836 Hafnium(IV) oxide, Spectrographic Grade, 99.9% (metals basis excluding Zr), Zr typically <80ppm

CAS Number
12055-23-1
Synonyms

Size Price ($) Quantity Availability
2g 86.21
10g 299.73
Add to Cart Add to Quote Request View Item

Hafnium(IV) oxide, Spectrographic Grade, 99.9% (metals basis excluding Zr), Zr typically <80ppm

MDL
MFCD00003565
EINECS
235-013-2

Chemical Properties

Formula
HfO2
Formula Weight
210.49
Form
-325 Mesh Powder
Melting point
2774°
Density
9.68
Solubility
Insoluble in water.

Applications

Hafnium(IV) oxide is used in optical coatings and in advanced metal-oxide-semiconductor devices. It is used as a gate insulator in field-effect transistors due to its high dielectric constant. It plays an important role as a possible candidate for resistive-switching memories, as a refractory material in the insulation of devices such as thermocouples and as a high-&#954; dielectric in DRAM capacitors. Also, used in the preparation of hafnium tetrachloride.

Notes

Incompatible with strong oxidizing agents.

Literature References

Choi, J. H.; Mao, Y.; Chang, J. P. Development of hafnium based high-k materials—A review. Mater. Sci. Eng., R Rep. 2011, 72 (6), 97-136.

Zhu, H.; Tang, C.; Fonseca, L. R. C.; Ramprasad, R. Recent progress in ab initio simulations of hafnia-based gate stacks. J. Mater. Sci. 2012, 47 (21), 7399-7416.

Other References

Merck
14,4588
Harmonized Tariff Code
2825.90
TSCA
Yes

Recommended

  • B22650

    2,2-Diphenylglycine, 98%
  • 00875

    Calcium granules, redistilled, -6 mesh, 99.5% (metals basis)
  • 10357

    Tantalum foil, 2.0mm (0.08in) thick, 99.95% (metals basis)
  • 10567

    Rubidium sulfate, 99.8% (metals basis)
  • 10627

    Aluminum oxide, Puratronic®, 99.995% (metals basis)

Recently Viewed

Chemicals

Life Science

Metals & Materials

Catalysts

Analytical & Labware