CAS Registry Number

CAS 12055-23-1 — Hafnium oxide

Hafnium oxide (HfO₂) is a high-performance ceramic material widely used in electronics, optics, and refractory applications for its excellent dielectric properties, thermal stability, and resistance to corrosion. It serves as a gate insulator in semiconductors, a high-index coating in optical lenses, and a refractory additive in high-temperature ceramics. CAS 12055-23-1, molecular formula HfO₂, molecular weight 210.48 g/mol. Stored at ambient conditions with no signal word required. Molekula supplies hafnium oxide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Also known as: Hafnia · Hafnia (HfO2) · Hafnium dioxide · Hafnium dioxide (HfO2) · Hafnium oxide (HfO2) · Hafnotrast · Hf 05 · Hf 05 (oxide) · NSC 158931