Hafnium dioxide

Agent Name
Hafnium dioxide
CAS Number
12055-23-1
Formula
Hf-O2
Major Category
Metals
Hafnium dioxide formula graphical representation
Synonyms
Hafnia; Hafnotrast; Hafnium oxide (HfO2); [ChemIDplus] Hafnium(IV) oxide; [Alfa Aesar MSDS]
Category
Metals, Inorganic Compounds
Description
Off-white odorless powder; [Alfa Aesar MSDS]
Comments
Low acute oral toxicity in mice; Mild changes in the tissue of the lungs and liver observed in repeated-dose oral studies of guinea pigs; [HSDB] Contains < 0.2% zirconium oxide; Powder causes eye irritation; [Alfa Aesar MSDS] See "Hafnium."
Biomedical References
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Exposure Assessment

TLV (ACGIH)
0.5 mg/m3, as Hf
PEL (OSHA)
0.5 mg/m3, as Hf
IDLH (NIOSH)
50 mg/m3, as Hf

Diseases, Processes, and Activities Linked to This Agent

Other Information
No other related information on this agent was found.