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Uranium (insoluble compounds, as U)																				Related Pages
Synonyms & Trade Names
			Uranium I, Uranium metal
CAS No.
			7440-61-1 (metal)
	RTECS No.
			YR3490000 (metal)
	DOT ID & Guide
			2979 162(metal, pyrophoric)

FormulaU (metal)
	Conversion
	IDLH
			Ca [10 mg/m3 (as U)]See: 7440611

Exposure Limits
			NIOSH RELCa TWA 0.2 mg/m3 ST 0.6 mg/m3See Appendix A
					OSHA PEL TWA 0.25 mg/m3See Appendix G
	Measurement Methods
			None available 
					
					See: NMAM or OSHA Methods
										
Physical Description
			Metal: Silver-white, malleable, ductile, lustrous solid.
					[Note: Weakly radioactive.]													
										
Molecular Weight238.0	
	Boiling Point6895°F
	Melting Point2097°F
	SolubilityInsoluble
	Vapor Pressure0 mmHg (approx)
	Ionization PotentialNA											
Specific Gravity19.05 (metal)	
	Flash PointNA
	Upper Explosive LimitNA
	Lower Explosive LimitNA
	
	Minimum Explosive Concentration60 g/m3
Metal: Combustible Solid, especially turnings and powder.
Incompatibilities & Reactivities
			Carbon dioxide, carbon tetrachloride, nitric acid, fluorine
					[Note: Complete coverage of uranium metal scrap with oil is essential for prevention of fire.]
Exposure Routes
			inhalation, ingestion, skin and/or eye contact
Symptoms
			dermatitis; kidney damage; blood changes; ; In Animals: lung, lymph node damage;  Potential for cancer is a result of alpha-emitting properties & radioactive decay products (e.g., radon). [potential occupational carcinogen]
Target Organs
			Skin, kidneys, bone marrow, lymphatic system
Cancer Site[lung cancer]										
Personal Protection/Sanitation
			(See protection codes) **Skin:**Prevent skin contact
							**Eyes:**Prevent eye contact
							**Wash skin:**When contaminated/Daily
							**Remove:**When wet or contaminated
							**Change:**Daily
							**Provide:**Eyewash
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Soap wash promptly
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**NIOSH****At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:** (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus**Escape:**(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.Any appropriate escape-type, self-contained breathing apparatus
					Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 1251
					  MEDICAL TESTS: 0239

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Chemical Names, Synonyms and Trade Names
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
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Y
Z
CAS Numbers
RTECS Numbers
Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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