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Selenium hexafluoride |
CAS 7783-79-1 | ||
SeF6 |
RTECS VS9450000 | ||
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Synonyms & Trade Names Selenium fluoride |
DOT ID & Guide 2194 125 |
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Exposure
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NIOSH REL: TWA 0.05 ppm | ||
| OSHA PEL: TWA 0.05 ppm (0.4 mg/m3) | |||
| IDLH 2 ppm See: 7783791 | Conversion 1 ppm = 7.89 mg/m3 | ||
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Physical Description Colorless gas. |
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MW: 193.0 |
BP: -30°F |
FRZ: -59°F |
Sol: Insoluble |
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VP: >1 atm |
IP: ? |
RGasD: 6.66 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Nonflammable Gas | |||
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Incompatibilities & Reactivities Water [Note: Hydrolyzes very slowly in cold water.] |
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Measurement Methods None available See: NMAM or OSHA Methods |
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Personal Protection & Sanitation (See protection) Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: No recommendation |
First Aid (See procedures) Breathing: Respiratory support |
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Important additional information about respirator selection Respirator Recommendations NIOSH/OSHA Up to 0.5 ppm: (APF = 10) Any supplied-air respirator Up to 1.25 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 2 ppm: (APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode (APF = 50) Any self-contained breathing apparatus with a full facepiece (APF = 50) Any supplied-air respirator with a full facepiece 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 (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation | |
| Symptoms In animals: pulmonary irritation, edema | |
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Target Organs
respiratory system |
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| See also: INTRODUCTION See ICSC CARD: 0947 See MEDICAL TESTS: 0203 |