769401

Hafnium(IV) oxide

pellets, diam. × thickness 13 mm × 5 mm

• Synonym(s): Hafnia
• Empirical Formula (Hill Notation): HfO₂
• CAS Number: 12055-23-1
• Molecular Weight: 210.49
• EC Number: 235-013-2
• MDL number: MFCD00003565
• UNSPSC Code: 12352303
• NACRES: NA.23

Properties

• form: pellets
• diam. × thickness: 13 mm × 5 mm
• impurities: ≤0.1% PBB (polybrominated biphenyls); ≤0.1% PBDE (polybrominated diphenyl ethers)
• density: 9.68 g/mL at 25 °C (lit.)
• cation traces: Cd: ≤0.01%; Co: ≤0.0005%; Cr: ≤0.005%; Cu: ≤0.0005%; Fe: ≤0.005%; Hg: ≤0.1%; Pb: ≤0.1%; Ti: ≤0.005%; V: ≤0.005%; Zr: ≤0.5%
• SMILES string: O=[Hf]=O
• InChI: 1S/Hf.2O
• InChI key: CJNBYAVZURUTKZ-UHFFFAOYSA-N

Description

Application

High dielectric constant of hafnia makes it suitable for application in metal oxide based semiconductor devices. It also finds applications as optical coating materials

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable