Download or read book Toxicological Studies on Beryllium Oxides and Beryllium containing Exhaust Products written by Howard C. Spencer and published by . This book was released on 1968 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of long-term studies on rats and rabbits, injected intratracheally with well-characterized key samples of beryllium oxide prepared by calcining beryllium hydroxide for 10 hours at 500, 1100 and 1600 C, respectively, show clearly that there is a definite gradation in biological response depending upon the oxide administered. Thus, the oxide calcined at 500 C was highly active as judged by histopathological examination of the lungs, incidence of tumors, and translocation of beryllium from the lungs to other tissues. In contrast, the oxide calcined at 1600 C showed only minimal effects. Dose-response studies were carried out, using carefully prepared subsamples of 'respirable particle size' (1 to 5 microns) of the three key oxides; results showed a definite gradation in response which diminishes with decreasing dosages of the administered oxide. Investigations on motor exhaust products show that some samples have chemical, physical, and toxicological properties similar to the beryllium oxide calcined at 1600 C. On the other hand, other samples are heterogeneous, contain considerable quantities of water-soluble beryllium, and vary in toxicity. The mechanism of toxic action of beryllium oxide was investigated through study of chemical and physical properties, solubility and adsorption studies, serum electrophoretic analyses, and immunological experiments. Suggestions are made for further studies. (Author).

Download or read book Beryllium Oxide written by Remir Aleksandrovich Beli︠a︡ev and published by . This book was released on 1964 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beryllium and Beryllium Oxide Production and Development written by U.S. Atomic Energy Commission. New York Operations Office and published by . This book was released on 1950 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Abstract. Presented herein are the latest production methods for producing beryllium and beryllium oxide and the report of methods of production still in the development stage." A collection of seven talks presented at a meeting.

Download or read book Decrepitation of Beryllium Oxide at High Temperature written by S. B. Austerman and published by . This book was released on 1960 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beryllium Oxide for Nuclear Propulsion Application written by A. J. Rothman and published by . This book was released on 1963 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pure Beryllium Oxide as a Refractory written by Frederick Harwood Norton and published by . This book was released on 1946 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vapor Pressure of Beryllium Oxide written by N. D. Erway and published by . This book was released on 1947 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Vaporization of Beryllium Oxide written by B. D. Pollock and published by . This book was released on 1960 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beryllium Oxide Single Crystal Growth written by S. B. Austerman and published by . This book was released on 1961 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preparation of Dense Beryllium Oxide written by Collin Hyde and published by . This book was released on 1955 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactor weight Study of Beryllium Oxide Beryllium Lithium 7 Hydride and Water as Moderators with Tungsten 184 Structural Material and Uranium Dioxide Fuel written by Robert E. Hyland and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Spectrographic Detection of Trace Impurities in Beryllium Oxide written by Owen P. Killeen and published by . This book was released on 1959 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beryllium Oxide written by and published by . This book was released on 1962 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Determination of Sulfur in Beryllium Oxide and Sintered Beryllium Oxide Fuel Elements written by Walter G. Boyle (Jr.) and published by . This book was released on 1963 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Preparation of High purity Beryllium Oxide Through the Acetylacetone EDTA Solvent Extraction Process written by R. E. Moore and published by . This book was released on 1962 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oxygen Diffusion in Beryllium Oxide written by S. B. Austerman and published by . This book was released on 1961 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fabrication and Properties of Translucent Beryllium Oxide written by J. D. McClelland and published by . This book was released on 1961 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: