Whittaker

E. T, Whittaker and G, N. Watson, Modem Analysis, Cambridge University ftess, 1962,... 

PBI is being marketed as a replacement for asbestos and as a high temperature filtration fabric with exceUent textile apparel properties. The synthesis of whoUy aromatic polybenzimidazoles with improved thermal stabUities was reported in 1961 (12). The Non-MetaUic Materials and Manufacturing Technology Division of the U.S. Air Force Materials Laboratory, Wright-Patterson Air Force Base, awarded a contract to the Narmco Research and Development Division of the Whittaker Corp. for development of these materials into high temperature adhesives and laminates. 

U.S. sodium bromide demand accounts for 8—10% of total bromine production. In 1994 demand is estimated to have been 13,600—17,200 metric tons (5). At mid-1996, the price for technical-grade sodium bromide iu tmckload quantities was 1.54/kg ( 0.70/lb) (6). Manufacturers of sodium bromide iuclude Albemarle, Great Lakes Chemical, Rhc )ne-Poulenc, and Whittaker Corporation. 

Aminopyrimidine [591-55-9] M 95.1, m 171-172 (with sublimation), pK 2.52. Purified by conversion to the MgCl2 complex in a small vol of H2O. The complex ( 5g) is dissolved in the minimum vol of hot H2O, passed through a column of activated AI2O3 (200g) and the column washed with EtOH. Evapn of the EtOH gives a colorless residue of the aminopyrimidine which is recrystd from CgH6 (toluene could also be used) which forms needles at first then prisms. It melts with sublimation. Acetylation yields 5-acetamidopyrimidine which crysts from C H6, m 148-149°. [Whittaker 7 CAem Soc 1565 1951.]... 

Harman, P. (1998). The Natural Philosophy of James Clerk Maxwell. Cambridge, Eng. Cambridge University Press. Siegel, n. M. (1991). hniovatioti in Maxwell s Electromagnetic Theory. Cambridge, Eng. Cambridge University Press. Whittaker, E. T. (1954). History of the Theories of Aether and Electricity, Vols. 1-2. New York Philosophical Libraiy. 

Curran R. Stewart, T. P. and Whittaker T. J. T. (1997). Design Synthesis of Oscillating Water Column Wave Energy Converters Performance Matching. Journal of Power and Energy 211 4S j-505. 

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