Beaver, Wallace W. Formerly, Brush Beryllium Company, Cleveland, Ohio.
Trautman, W. Dean Brush Beryllium Company, Cleveland, Ohio.
- Extraction of oxide or hydroxide
- Beryllium oxide
- Beryllium metal
- Physical metallurgy
- Links to Primary Literature
- Additional Readings
Production of beryllium and its compounds uses 4000–10,000 tons (3600–9000 metric tons) per year of the mineral beryl. The variant amounts of raw materials reflect wide differences in production rates for the beryllium industry. Beryl, a beryllium-aluminum silicate containing (in commercial grades) about 11–13% beryllium oxide (BeO), 17–19% aluminum oxide (Al2O3), 64–70% silicon dioxide (SiO2), and 1–2% alkali metal oxides, is the only mineral used as a raw material for beryllium. Although beryl ore is widely dispersed throughout the world, it is not concentrated in deposits sufficient to justify direct mining. Beryllium is extremely toxic, if inhaled. Exposure in the workplace where it is mined, processed, or machined, is 0.5 μg/m3 over 10 h, per the National Institute for Occupational Safety and Health (NIOSH). See also: Beryl
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information