URANIUM, METAL & INSOLUBLE COMPOUNDS†

Chemical Identification
Chemical Identification
CAS # 7440-61-1
Formula

U

Synonyms

uranium metal: uranium I. Synonyms of other insoluble uranium compounds vary depending upon the specific compound.

Physical Properties
Physical Properties
Physical description Silver-white, malleable, ductile, lustrous solid.
Boiling point 7468°F Molecular weight 238
Freezing point/melting point 2075°F Vapor pressure 0 mmHg (approx)
Flash point Vapor density 19.05 (metal)
Specific gravity Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time*
Sampling volume (TWA)*
Sampling flow rate (TWA)*
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments
Method reference
Notes
Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Wipe Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA

0.25 mg/m³

REL-TWA

0.2 mg/m³

TLV-TWA

0.2 mg/m³ [1992]

PEL-TWA

0.2 mg/m³

PEL-STEL REL-STEL

0.6 mg/m³

TLV-STEL

0.6 mg/m³ [1992]

PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

N

Skin notation

N

Skin notation

N

Skin notation

N

Notes:

See 29 CFR 1910.1000 Table Z-1.

Notes:

CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.

Notes:

BEI®

Notes:

insoluble compounds, as U

Health factors:  See NIH-NLM PubChem. IDLH

10 mg/m³

Carcinogenic classifications: NIOSH-Ca, TLV-A1 Notes:

Ca

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Not listed

NIOSH: Pocket Guide to Chemical Hazards - Uranium (insoluble compounds, as U)

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Uranium (natural) [7440-61-1], Soluble and insoluble compounds, as U. See annual publication for most recent information.
  • Bleise, A., Danesi, P.R. and Burkart, W.: Properties, use and health effects of depleted uranium (DU): a general overview. J. Environ. Radioac. 64: 93-112, 2003.
  • Bolton, J.P.G. and Foster, C.R.M.: Battlefield use of depleted uranium and the health of veterans. J. R. Army Med. Corps 148: 221-230, 2002.
  • McDiarmid, M.A., et al.: Health effects of depleted uranium on exposed Gulf War veterans. Environ. Res. 82(2): 168-180, 2000.
  • Pellmar, T.C., et al.: Distribution of uranium in rats implanted with depleted uranium pellets. Toxicol. Sci. 49: 29-39, 1999.

Last Updated Date : 01/14/2021