Hafnium oxide is a chemical substance commonly used in spectroscopic analysis, catalyst systems, and refractory materials.

Preparation method: When heated to high temperature, hafnium directly combines with oxygen to form hafnium oxide. It can also be obtained by burning its sulfate or oxalate salts.

Application areas: Used for spectral analysis and catalyst systems, refractory materials.

Storage and transportation: materials that are stable and avoid acid at room temperature and pressure.