Uranium dioxide
Agent Name
Uranium dioxide
CAS Number
1344-57-6
Formula
O2-U
Major Category
Physical/Radiation
Synonyms
Uranium oxide (UO2); [ChemIDplus] Uranous oxide; Black uranium oxide; [Merck Index] Uranium (IV) oxide; [Sax] Brown oxide; [ATSDR ToxProfiles]
Category
Radioactive Compounds
Description
Brown to black powder; [Merck Index]
Sources/Uses
Occurs naturally in uraninite and pitchblende; Used in nuclear fuel; [Merck Index]
Comments
See "Uranium" and linked occupational diseases.
Biomedical References
Exposure Assessment
BEI
Uranium in urine = 200 ug/L at end of shift; [ACGIH]
TLV (ACGIH)
0.2 mg/m3, as U
STEL (ACGIH)
0.6 mg/m3, as U
PEL (OSHA)
0.05 mg/m3, as U (sol), 0.25 mg/m3, as U (insol)
IDLH (NIOSH)
10 mg/m3, as U
Explanatory Notes
mp = 2865 degrees C; [Merck Index] Insoluble in water; Soluble in HNO3; [ATSDR ToxProfiles]
ERPG-1
Insufficient data
ERPG-2
10 mg/me
ERPG-3
30 mg/m3
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.