Beryllium & beryllium compounds (as Be) |
Synonyms & Trade Names Beryllium metal: Beryllium
Other synonyms vary depending upon the specific beryllium compound. |
CAS No. 7440-41-7 (metal) |
RTECS No. DS1750000 (metal) |
DOT ID & Guide 1566 154 (compounds)
1567 134 (powder) |
FormulaBe (metal) |
Conversion |
IDLH Ca [4 mg/m3 (as Be)]
See: 7440417 |
Exposure Limits NIOSH REL: Ca C 0.0005 mg/m3 See Appendix A
OSHA PEL: TWA 0.002 mg/m3
C 0.005 mg/m3 (30 minutes), with a maximum peak of 0.025 mg/m3 |
Measurement Methods
NIOSH 7102 , 7300 , 7301 , 7303 , 9102;
OSHA ID125G , ID206
See: NMAM or OSHA Methods |
Physical Description Metal: A hard, brittle, gray-white solid. |
MW: 9.0 |
BP: 4532°F |
MLT: 2349°F |
Sol: Insoluble |
VP: 0 mmHg (approx) |
IP: NA |
Sp.Gr: 1.85 (metal) |
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. |
Incompatibilities & Reactivities Acids, caustics, chlorinated hydrocarbons, oxidizers, molten lithium |
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] |
Target Organs Eyes, skin, respiratory system |
Cancer Site[lung cancer] |
Personal Protection/Sanitation (See protection codes)
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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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
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0226 See MEDICAL TESTS: 0025 |
