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| Uranium (insoluble compounds, as U) | CAS 7440-61-1 (metal) | ||
| U (metal) | RTECS YR3490000 (metal) | ||
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Synonyms & Trade Names Uranium metal: Uranium I Synonyms of other insoluble uranium compounds vary depending upon the specific compound. |
DOT ID & Guide 2979 162 (metal, pyrophoric) |
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Exposure Limits |
NIOSH REL: Ca TWA 0.2 mg/m3 ST 0.6 mg/m3 See Appendix A | ||
| OSHA PEL†: TWA 0.25 mg/m3 | |||
| IDLH Ca [10 mg/m3 (as U)] See: 7440611 | Conversion | ||
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Physical Description Metal: Silver-white, malleable, ductile, lustrous solid. [Note: Weakly radioactive.] |
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MW: 238.0 |
BP: 6895°F |
MLT: 2097°F |
Sol: Insoluble |
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VP: 0 mmHg (approx) |
IP: NA |
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Sp.Gr: 19.05 (metal) |
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Fl.P: NA |
UEL: NA |
LEL: NA |
MEC: 60 g/m3 |
| Metal: Combustible Solid, especially turnings and powder. | |||
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Incompatibilities & Reactivities Carbon dioxide, carbon tetrachloride, nitric acid, fluorine [Note: Complete coverage of uranium metal scrap with oil is essential for prevention of fire.] |
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Measurement Methods None available See: NMAM or OSHA Methods |
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Personal Protection & Sanitation 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 |
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Important additional information about respirator selection 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 a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Dermatitis; kidney damage; blood changes; [potential occupational carcinogen]; in animals: lung, lymph node damage [Potential for cancer is a result of alpha-emitting properties & radioactive decay products (e.g., radon).] | |
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Target Organs
Skin, kidneys, bone marrow, lymphatic system Cancer Site [lung cancer] |
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| See also: INTRODUCTION See MEDICAL TESTS: 0239 |