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Beryllium & beryllium compounds (as Be) |
CAS 7440-41-7 (metal) | ||
Be (metal) |
RTECS DS1750000 (metal) | ||
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Synonyms & Trade Names Beryllium metal: Beryllium Other synonyms vary depending upon the specific beryllium compound. |
DOT ID & Guide 1566 154 (compounds) 1567 134 (powder) |
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Exposure
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NIOSH REL: Ca Not to exceed 0.0005 mg/m3 See Appendix A | ||
| OSHA PEL: TWA 0.002 mg/m3 C 0.005 mg/m3 0.025 mg/m3 [30-minute maximum peak] | |||
| IDLH Ca [4 mg/m3 (as Be)] See: IDLH INDEX | Conversion | ||
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Physical Description Metal: A hard, brittle, gray-white solid. |
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MW: 9.0 |
BP: 4532°F |
MLT: 2349°F |
Sol: Insoluble |
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VP: 0 mmHg (approx) |
IP: NA |
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Sp.Gr: 1.85 (metal) |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Metal: Noncombustible Solid in bulk form, but a slight explosion hazard in the form of a powder or dust. | |||
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Incompatibilities & Reactivities Acids, caustics, chlorinated hydrocarbons, oxidizers, molten lithium |
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Measurement Methods NIOSH 7102, 7300, 7301, 7303, 9102; OSHA ID125G, ID206 See: NMAM or OSHA Methods |
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Personal Protection & Sanitation (See protection) Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: Daily Remove: When wet or contaminated Change: Daily Provide: Eyewash |
First Aid (See procedures) Eye: Irrigate immediately Breathing: Fresh air |
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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 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 |
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| Exposure Routes inhalation, skin and/or eye contact | |
| Symptoms Berylliosis (chronic exposure): anorexia, weight loss, lassitude (weakness, exhaustion), chest pain, cough, clubbing of fingers, cyanosis, pulmonary insufficiency; irritation eyes; dermatitis; [potential occupational carcinogen] | |
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Target Organs
Eyes, skin, respiratory system Cancer Site [lung cancer] |
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| See also: INTRODUCTION See ICSC CARD: 0226 See MEDICAL TESTS: 0025 |