URANIUM, SOLUBLE COMPOUNDS†

Chemical Identification

CAS # 7440-61-1
Formula

U

Synonyms

Synonyms vary depending upon the specific soluble uranium compound.

Physical Properties

Physical description Colorless liquid with a strong, acrid, pungent odor.
Boiling point 7468°F Molecular weight 238
Freezing point/melting point 2075°F Vapor pressure depends upon the specific compound
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

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.

Bulk/Wipe Method

Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques

Device
Model/Type
Sampling information
(see manufacturer instructions)

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

0.05 mg/m³

REL-TWA

0.05 mg/m³

TLV-TWA

0.2 mg/m³ [1992]

PEL-TWA

0.05 mg/m³

PEL-STEL REL-STEL 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:

soluble 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

Last Updated Date : 01/29/2021