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| Rhodium (metal fume and insoluble compounds, as Rh) | CAS 7440-16-6 (metal) | ||
| Rh (metal) | RTECS VI9069000 (metal) | ||
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Synonyms & Trade Names Rhodium metal: Elemental rhodium Synonyms of other insoluble rhodium compounds vary depending upon the specific compound. |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: TWA 0.1 mg/m3 | ||
| OSHA PEL: TWA 0.1 mg/m3 | |||
| IDLH 100 mg/m3 (as Rh) | Conversion | ||
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Physical Description Metal: White, hard, ductile, malleable solid with a bluish-gray luster. |
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MW: 102.9 |
BP: 6741°F |
MLT: 3571°F |
Sol: Insoluble |
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VP: 0 mmHg (approx) |
IP: NA |
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Sp.Gr: 12.41 (metal) |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Metal: Noncombustible Solid in bulk form, but flammable as dust or powder. | |||
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Incompatibilities & Reactivities Chlorine trifluoride, oxygen difluoride |
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Measurement Methods NIOSH S188 (II-3) |
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Personal Protection & Sanitation Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: No recommendation |
First Aid (See procedures) Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH/OSHA Up to 0.5 mg/m3: (APF = 5) Any dust and mist respirator^ Up to 1 mg/m3: (APF = 10) Any dust and mist respirator except single-use and quarter-mask respirators^/(APF = 10) Any supplied-air respirator Up to 2.5 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode/(APF = 25) Any powered, air-purifying respirator with a dust, mist, and fume filter Up to 5 mg/m3: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode/(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 100 mg/m3: (APF = 1000) Any supplied-air respirator operated in a pressure-demand or other positive-pressure mode Emergency or planned entry into unknown concentrations or IDLH conditions: (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 | |
| Symptoms Possible respiratory sensitization | |
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Target Organs
respiratory system |
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| See also: INTRODUCTION |