Hafnium Oxide

Hafnium Oxide

CAS #: 12055-23-1
Linear Formula: HfO2
EC No.: 235-013-2

Product Details

Hafnium oxide is a white powder, molecular formula HfO2, insoluble in water, hydrochloric acid and nitric acid, soluble in concentrated sulfuric acid and hydrofluoric acid. Mainly used in the production of metal hafnium and hafnium alloy raw materials.

Hafnium Oxide

Hafnium Oxide



Product Series

ProductProduct Code

Safety Data

Technical Data

Hafnium Oxide 99.9%


Hafnium Oxide 99.99%ET-Hf-02TIM图片20180524114629_副本(001)

Properties (Theoretical)

Compound FormulaHfO2
Molecular Weight210.49
Melting Point2900 °C (5250 °F)
Boiling Point5,400° C (9,752° F)
Density9.7 g/cm3
Electrical Resistivity9 10x Ω-m
Specific Heat120 J/kg-K
Thermal Conductivity1.1 W/m-K
Thermal Expansion6.0 µm/m-K
Young's Modulus57 GPa
Exact Mass251.989 g/mol
Monoisotopic Mass211.936329 Da

Health & Safety Information

Signal WordN/A
Hazard StatementsN/A
Hazard CodesN/A
Precautionary StatementsN/A
Flash PointNot applicable
Risk CodesN/A
Safety StatementsN/A
Transport InformationNONH
WGK Germany3

Packaging Specifications

Finished packaging: 50 kg / barrel, 500 kg / tray, ton bag packaging

Sample packaging: 500 g / bag, 1 kg / bottle


Hafnium (HfO2) is a broadband gap and high dielectric constant of ceramics, recently in the field of industry especially microelectronics is extremely attention, because it is most likely to replace the current silicon-based integrated circuit of the core components of metal oxide semiconductor field effect tube (MOSFET) gate dielectric silica (SiO2), in order to solve the MOSFET in the development of the traditional structure of SiO2 / Si size limit.

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