|
|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Selenium |
CAS 7782-49-2 | ||
Se |
RTECS VS7700000 | ||
|
Synonyms & Trade Names Elemental selenium, Selenium alloy |
DOT ID & Guide 2658 152 (powder) |
||
Exposure
|
NIOSH REL*: TWA 0.2 mg/m3 [*Note: The REL also applies to other selenium compounds (as Se) except Selenium hexafluoride.] | ||
| OSHA PEL*: TWA 0.2 mg/m3 [*Note: The PEL also applies to other selenium compounds (as Se) except Selenium hexafluoride.] | |||
| IDLH 1 mg/m3 (as Se) See: 7782492 | Conversion | ||
|
Physical Description Amorphous or crystalline, red to gray solid. [Note: Occurs as an impurity in most sulfide ores.] |
|||
|
MW: 79.0 |
BP: 1265°F |
MLT: 392°F |
Sol: Insoluble |
|
VP: 0 mmHg (approx) |
IP: NA |
|
Sp.Gr: 4.28 |
|
Fl.P: NA |
UEL: NA |
LEL: NA |
|
| Combustible Solid | |||
|
Incompatibilities & Reactivities Acids, strong oxidizers, chromium trioxide, potassium bromate, cadmium |
|||
|
Measurement Methods NIOSH 7300, 7301, 7303, 9102, S190 (II-7); OSHA ID121 See: NMAM or OSHA Methods |
|
Personal Protection & Sanitation (See protection) Skin: Prevent skin contact Eyes: No recommendation Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation Provide: Quick drench |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately |
|
Important additional information about respirator selection Respirator Recommendations NIOSH/OSHA Up to 1 mg/m3: (APF = 5) Any quarter-mask respirator. Click here for information on selection of N, R, or P filters.* (APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100. Click here for information on selection of N, R, or P filters.* (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. (APF = 25) Any powered air-purifying respirator with a high-efficiency particulate filter.* (APF = 10) Any supplied-air respirator* (APF = 50) Any self-contained breathing apparatus 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 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 |
|
| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, nose, throat; visual disturbance; headache; chills, fever; dyspnea (breathing difficulty), bronchitis; metallic taste, garlic breath, gastrointestinal disturbance; dermatitis; eye, skin burns; in animals: anemia; liver necrosis, cirrhosis; kidney, spleen damage | |
|
Target Organs
Eyes, skin, respiratory system, liver, kidneys, blood, spleen |
|
| See also: INTRODUCTION See ICSC CARD: 0072 See MEDICAL TESTS: 0202 |