Hafnium(IV) oxide, 99% (metals basis excluding Zr), Zr <1.5%, Thermo Scientific Chemicals

Product Code	Brand	Quantity
11371888	Thermo Scientific Alfa Aesar 011835.14	25 g
11381888	Thermo Scientific Alfa Aesar 011835.22	100 g

Description

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.

Chemical Identifiers

• CAS: 12055-23-1
• Molecular Weight (g/mol): 210.49
• InChI Key: WIHZLLGSGQNAGK-UHFFFAOYSA-N
• SMILES: [O--].[O--].[Hf+4]

• Molecular Formula: HfO2
• MDL Number: MFCD00003565
• IUPAC Name: hafnium(4+) dioxidandiide

Specifications

• Melting Point: 2774°C
• Physical Form: Powder
• Molecular Formula: HfO2
• UN Number: 3260
• InChI Key: WIHZLLGSGQNAGK-UHFFFAOYSA-N
• IUPAC Name: hafnium(4+) dioxidandiide
• Formula Weight: 210.49
• Chemical Name or Material: Hafnium(IV) oxide

• CAS: 12055-23-1
• Assay Percent Range: 99% (Metals Basis)
• MDL Number: MFCD00003565
• Solubility Information: Insoluble in water.
• SMILES: [O--].[O--].[Hf+4]
• Molecular Weight (g/mol): 210.49
• Density: 9.68 g/mL

Safety and Handling

missing translation for 'einecsNumber' : 235-013-2

missing translation for 'tsca' : Yes

Recommended Storage : Ambient temperatures

RUO – Research Use Only