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

Product Code. 11301898
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Quantity:
2 g
10 g
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This item is not returnable. View return policy
Regulatory: Restrictions may apply to the purchase of this product and we may need to request additional documentation from you

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-κ dielectric in DRAM capacitors. Also, used in the preparation of hafnium tetrachloride.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

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Chemical Identifiers

CAS 12055-23-1
Molecular Formula HfO2
Molecular Weight (g/mol) 210.49
MDL Number MFCD00003565
InChI Key WIHZLLGSGQNAGK-UHFFFAOYSA-N
IUPAC Name hafnium(4+) dioxidandiide
SMILES [O--].[O--].[Hf+4]

Specifications

Melting Point 2774°C
Physical Form Powder
Quantity 2 g
Merck Index 14,4588
Solubility Information Insoluble in water.
Formula Weight 210.49
Percent Purity 99.9%
Odor Odorless
Density 9.68 g/mL
Assay (metals basis excluding Zr), Zr typically <80ppm
Chemical Name or Material Hafnium(IV) oxide
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RUO – Research Use Only

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